# Learning Log

## 2026-06-27: Round 1 AER/QJE Repositioning

Objective: Move `paper_task_frontier_race/site/task_frontier_race.tex` toward a top
economics theory submission while preserving the core primitive: AI tasks are described
by horizon multiplied by forgiveness, with fragility as the inverse of forgiveness.

Changes made:

- Rewrote the abstract around the economic puzzle: the same AI industry exhibits
  low-cost catch-up in some markets and continued frontier racing in others.
- Rewrote the introduction so the paper now follows the sequence:
  puzzle -> task-frontier primitive -> sufficient statistics -> race-inversion theorem
  -> market saturation/frontier coexistence -> data flywheel versus lock-in.
- Added `Predictions and Measurement`, a theory-first measurement discipline that states
  how horizon, fragility, regional boundary ratios, race direction, saturation, and trace
  productivity would discipline or falsify the model.
- Standardized language around the second coordinate: \(f\) is fragility, \(q_F\) is
  reliability capability for fragile tasks, and \(B_F\) is the fragility-boundary value.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 32-page PDF.

Current assessment:

- The manuscript is now more clearly organized around one main contribution:
  task-region race inversion.
- The next important step is not to add more mechanisms. It is to sharpen the main
  theorem's role, reduce the feeling of a mechanism collection, and decide which dynamic
  results belong in the main text versus the appendix.

## 2026-06-27: Round 2 AE-Driven Structural Tightening

Independent reviewer/AE assessment:

- The first rewrite clarified the top-journal spine, but the paper still had too many
  mechanisms in the main text.
- The highest-value comments were to reduce main-text dilution, make measurement more
  operational, and sharpen the scalar-model failure as a minimality result.
- Lower-value comments to defer: full empirical exercise, broad welfare expansion, and
  satisfying every robustness concern.

Changes made:

- Moved the detailed two-period race, infinite-horizon Markov race, tipping/stopping,
  and private-social frontier wedge sections into the appendix by placing the conclusion
  before `\appendix`.
- Left the main text focused on primitives, sufficient statistics, task classification,
  race technologies, race inversion, measurement, low-cost imitation, and saturation.
- Added a minimality paragraph after the race-inversion theorem: scalar models can fit
  local rankings, but region-invariant scalar increments cannot generate a reversal
  without adding task-region wedges.
- Added a robustness clarification that the race-ranking logic uses local regional
  boundary values and does not depend on taking the product success form literally.
- Added a measurement table mapping region type to measured object, predicted race
  object, and falsifying pattern.
- Weakened current-system references so they illustrate rather than support the theorem.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 33-page PDF.
- LaTeX log contains no `Warning` and no `undefined` references after rerun.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies.

Current assessment:

- The paper is more submission-shaped: one main theorem, one scalar failure, one
  measurement discipline.
- Remaining high-value work: decide whether the private race inversion theorem belongs
  in main text or appendix, improve the visual presentation of the measurement table,
  and possibly add one clean task-space figure.

## 2026-06-27: Round 3 Main-Theorem Focus and Figure

Motivation:

- The main text still risked presenting two theorem-level results: task-region race
  inversion and private race inversion with rent shifting.
- The private-incentive result is useful, but it should not compete with the main
  theorem in a first-submission theory paper.
- The manuscript also needed one clean visual representation of the task space and
  predicted race direction.

Changes made:

- Replaced the four-quadrant classification table with a black-and-white TikZ figure
  showing horizon, fragility, current boundaries, region examples, and the predicted
  race direction for \(\Delta_H\), \(\Delta_F\), and \(C\).
- Added `float` and `tikz` packages and forced the figure to appear immediately after
  the classification paragraph so it does not float before the section heading.
- Removed the main-text theorem environment for private race inversion with rent
  shifting. The main text now explains private incentives as a cutoff tilt, while the
  detailed decomposition remains in the appendix.
- Updated appendix proof language so it verifies the rent-adjusted threshold without
  referencing a removed theorem label.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 33-page PDF.
- The LaTeX log contains no `Warning` and no `undefined` references.
- Visual inspection of the figure page confirmed the figure now appears after the
  section heading and no longer has distracting automatic hyphenation.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies.

Current assessment:

- Main text now has one theorem-level centerpiece: task-region race inversion and scalar
  failure.
- Remaining high-value work: evaluate whether the measurement table should become a
  formal proposition, and whether the technology assumptions should be sharpened into a
  clearer primitive/result split.

## 2026-06-27: Round 4 AE Follow-Up

Independent reviewer/AE assessment:

- The manuscript is directionally correct and now has a credible single spine.
- Remaining high-value comments were to make race inversion the explicit Main Theorem,
  demote the sufficient-statistic theorems as building blocks, make Figure 1 a theorem
  map rather than a taxonomy poster, remove private-incentive language from the main
  theorem, and make measurement more operational.

Changes made:

- Renamed Theorem 4 to `Main theorem: task-region race inversion and scalar minimality`.
- Changed the paragraph after Theorem 3 from "the paper's core" to "building blocks for
  the main result" so the sufficient-statistic results do not compete with the main
  theorem.
- Replaced "privately efficient race direction" in the main theorem with
  "frontier-value ranking."
- Revised Figure 1 into a theorem map: high \(\Theta_R\), low \(\Theta_R\), and corner
  mass \(C\) are now the organizing labels.
- Added an operational measurement paragraph defining task cells, horizon
  manipulations, fragility manipulations, project classification, and the reversal sign
  test.
- Removed unused short-term product/page bibliography entries that were not cited and
  made the bibliography look less like a current-systems survey.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 33-page PDF.
- The LaTeX log contains no `Warning` and no `undefined` references.
- Searches found no remaining Anthropic/DeepSeek/GLM/Z.AI/Claude product-page entries.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies.

Current assessment:

- The main text now reads much more like: primitive -> boundary statistics -> Main
  Theorem -> measurement/falsification -> saturation/imitation.
- Remaining high-value work: sharpen the technology assumptions so they are not merely
  descriptive, and consider whether the measurement restrictions should be stated as a
  proposition rather than a table plus paragraphs.

## 2026-06-27: Round 5 Technology Layer Formalization

Motivation:

- The technology section still read partly as a list of CS mechanisms. For a top theory
  submission, base scaling, runtime, verification, data, distillation, and GPU progress
  should enter as formal project steps and costs.
- The user specifically wanted room to abstract factors such as GPU improvements without
  changing the core horizon-by-forgiveness task primitive.

Changes made:

- Added an `assumption` theorem environment.
- Rewrote the technology layer around induced capability steps:
  \(d_a(x_i)=(H_x(x_i)\delta_a,F_x(x_i)\delta_a)\).
- Introduced project costs \(K_a(z)\) and an infrastructure state \(z\), where \(z\)
  includes accelerator supply, energy, interconnect, financing, and training systems.
- Clarified that GPU/accelerator progress is not a third task coordinate. It changes
  project costs, feasible project menus, or induced capability steps; its economic value
  still depends on which boundary the project moves.
- Added Assumption 1, `Boundary-moving technologies`, which classifies projects by
  measured induced steps rather than engineering labels.
- Added a lumpy-project value-per-cost expression:
  \((B_H d_{aH}+B_F d_{aF})/K_a(z)\).
- Updated measurement language so the reversal sign test uses cost-normalized project
  values/frequencies.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 33-page PDF.
- The LaTeX log contains no `Warning` and no `undefined` references.
- PDF text extraction confirms the new infrastructure/GPU abstraction and Assumption 1
  appear in the manuscript.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies.

Current assessment:

- The paper now has a cleaner theory pipeline: task primitives produce boundary values;
  technology projects produce cost-normalized capability steps; the Main Theorem ranks
  those steps by regional boundary ratios.
- Remaining high-value question for independent review: whether this technology layer is
  now formal enough, or whether it should be further compressed to avoid distracting
  from the main theorem.

## 2026-06-27: Round 6 Project Technology Tightening

Motivation:

- An independent AE-style read found that the technology layer was improved but still
  partly descriptive. The highest-value correction was to make technology a formal
  project environment rather than a list of engineering mechanisms.
- The same review also pointed out that the main theorem should state the unequal-cost
  comparison before specializing to same-cost projects.

Changes made:

- Replaced Assumption 1 with `Project technology`. The main text now defines an
  infrastructure state \(\zeta\), feasible project set \(\mathcal A(\zeta)\), project
  costs \(K_a(\zeta)\), and induced local steps \(d_a(x,\zeta)\).
- Clarified that GPU, accelerator, energy, financing, and training-system changes enter
  only through \(\mathcal A(\zeta)\), \(K_a(\zeta)\), or \(d_a(x,\zeta)\), not as a
  third task coordinate.
- Added the unequal-cost local comparison:
  \[
  \frac{B_H^R d_{yH}+B_F^R d_{yF}}{K_y}
  >
  \frac{B_H^R d_{zH}+B_F^R d_{zF}}{K_z}.
  \]
- Recast the race-inversion threshold in cost-normalized terms and kept the same-cost
  threshold as a transparent special case.
- Clarified the local first-order interpretation versus finite project values by
  defining \(W_R\) and \(A_R(q,d)=W_R(q+d)-W_R(q)\) in the technology section.
- Moved the data and distillation law of motion out of the main theorem path and into
  the appendix data-distillation tipping section.
- Aligned the appendix Markov project menu \(\mathcal M(z)\) with the main text's
  feasible project set \(\mathcal A(\zeta)\).

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 35-page PDF.
- The LaTeX log contains no `Warning` and no `undefined` references.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies.

Current assessment:

- The core theory path is now cleaner: task primitives define regional boundary values;
  project technology maps engineering interventions into cost-normalized capability
  steps; the main theorem ranks those steps and proves scalar minimality.
- Remaining high-value review question: whether the paper now has enough economic
  discipline in the measurement section, or whether measurement should be promoted from
  a table to a formal testable-restrictions proposition.

## 2026-06-27: Round 7 AE Follow-Up on Minimality and Consistency

Independent reviewer/AE assessment:

- The project-technology revision was directionally strong, but the main theorem still
  risked reading as two-dimensional gradient algebra.
- The highest-value comments were to make the theorem an observable restriction and
  scalar-minimality result, defend horizon and fragility against a renamed-scalar
  critique, and repair several notation/proof inconsistencies.
- Deferred comments: do not add a calibration, do not add new task dimensions, do not
  expand the Markov race into the main contribution, and do not chase examples for every
  AI market.

Changes made:

- Renamed the main theorem to `observable race inversion and scalar minimality`.
- Added a formal ranking notation \(y\succ_R z\) and defined race inversion as reversed
  rankings across regions for the same projects, menu, and costs.
- Strengthened the theorem statement and proof so the observable restriction is explicit:
  with fixed project steps and costs, a ranking reversal requires regional scarcity
  ratios to straddle the same project threshold; scalar models with region-invariant
  increments and costs cannot generate that reversal.
- Added primitive discipline against the renamed-scalar critique: horizon and fragility
  may be correlated, but they are identified by orthogonal manipulations of chain depth
  and forgiveness/error tolerance.
- Added a concise economics-literature positioning paragraph connecting the paper to
  task-based technical change, directed innovation, GPTs, and step-by-step races.
- Clarified that local project steps \(d_a\) may be signed even though the finite-step
  value theorem studies nonnegative capability improvements.
- Added the range condition needed for \(G_F^{-1}(p^*)\) in the sequential
  microfoundation.
- Clarified the one-dimensional reduction when the task domain is not a product set.
- Removed the \(r_i\) notation conflict in the dynamic appendix by renaming the runtime
  vector \(\eta_i\).
- Rewrote the private race inversion appendix to define
  \(D=d_y-d_z=(D_H,D_F)\), display the rent-adjusted threshold, and explain the
  business-stealing tilt.
- Replaced the appendix phrase `forgiveness direction` with `reliability direction` to
  keep \(f\) as fragility and \(q_F\) as reliability capability.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 35-page PDF.
- The LaTeX log contains no `Warning`, no `Overfull`, and no `undefined` references.
- PDF text extraction confirms the new observable-inversion theorem title, orthogonal
  manipulation discipline, literature positioning, and rent-adjusted threshold appear in
  the manuscript.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies.

Current assessment:

- The main theorem now carries more top-journal weight: it is not only a threshold but
  an observable cross-region restriction plus a scalar-minimality result.
- The remaining high-value frontier is expositional compression and deciding whether the
  measurement table should become a proposition. The current draft should not add more
  mechanisms before that judgment.

## 2026-06-27: Round 8 Measurement Proposition

Motivation:

- After the main theorem was reframed as an observable inversion and scalar-minimality
  result, the measurement section still read partly like interpretive guidance.
- The next high-value step was to convert the measurement discipline into a formal
  theory-implied restriction without turning the paper into a calibration or empirical
  exercise.

Changes made:

- Added Proposition 1, `Testable restrictions`, to the main text.
- The proposition states four restrictions implied by the theory:
  race rankings cross the common project threshold only when
  \(\widehat\Theta_R\) crosses \(\widehat\tau_{yz}\); scalar quality models with
  region-invariant increments and costs predict common project rankings; high current
  value \(W_R\) does not imply high frontier pressure; and deployment scale creates
  productive frontier learning only when \(\zeta_R(q)\) exceeds the opportunity cost of
  learning.
- Replaced several explanatory measurement paragraphs with the proposition and a short
  interpretation paragraph, leaving the table as a compact summary rather than the sole
  source of discipline.
- Added an appendix proof showing that the proposition follows from the main theorem,
  the slope bound \(B_H^R d_H+B_F^R d_F\), and the regional data/distillation chain
  rule.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 36-page PDF.
- The LaTeX log contains no `Warning`, no `Overfull`, and no `undefined` references.
- PDF text extraction confirms Proposition 1 and its testable-restrictions language
  appear in the manuscript.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies.

Current assessment:

- The measurement section is now theory-first: it gives falsifiable restrictions that
  discipline the primitive without adding new mechanisms.
- Because this is a material change, the next step is independent AE/reviewer review
  focused on whether the proposition sharpens the paper or makes the main text too
  crowded.

## 2026-06-27: Round 9 Measurement Proposition Narrowing

Independent reviewer/AE assessment:

- The measurement proposition moved in the right direction, but the first version was
  too broad for the main text. It bundled the race-inversion sign test, scalar
  benchmark, saturation, and data/distillation learning.
- The high-value recommendation was to keep the formal statement focused on the main
  theorem's sign-reversal restriction and demote saturation/data-learning implications
  to prose and the table.
- Two technical fixes were necessary: distinguish population restrictions from plug-in
  estimates, and remove a local-bound statement that could be too strong for finite
  projects with complementarity.

Changes made:

- Renamed Proposition 1 to `Testable race-inversion restriction`.
- Narrowed the proposition to the population threshold
  \[
  \tau_{yz}=
  \frac{d_{zF}/K_z-d_{yF}/K_y}{d_{yH}/K_y-d_{zH}/K_z},
  \]
  the sign-reversal implication, the asymptotic plug-in version under consistent
  estimates, and the scalar common-ranking benchmark.
- Removed the saturation and trace-productivity statements from the formal proposition;
  they remain as secondary implications in the interpretation paragraph and table.
- Rewrote the appendix proof so it proves only the narrowed sign restriction and its
  consistent-estimation version.
- Removed the potentially over-strong finite-project local-bound claim from the
  proposition and proof.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 35-page PDF.
- The LaTeX log contains no `Warning`, no `Overfull`, and no `undefined` references.
- PDF text extraction confirms the narrowed proposition, population project threshold,
  and consistent-estimates language appear in the manuscript.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies.

Current assessment:

- The measurement section now supports the main theorem without becoming the paper's
  center of gravity. It disciplines the primitive through one sharp sign test and leaves
  secondary implications as prose/table summaries.

## 2026-06-27: Round 10 Measurement Margin Condition

Independent reviewer/AE assessment:

- A narrow AE check found that the narrowed Proposition 1 now fits a top theory paper
  as a measurement corollary.
- The only must-fix was to state the non-tie condition in the proposition itself:
  consistent plug-in estimates recover the sign only away from
  \(\Theta_R=\tau_{yz}\).
- The reviewer advised against adding a full econometric identification proposition or
  more caveats about wedges and adoption frictions.

Changes made:

- Added the condition `For regions away from equality, \(\Theta_R\neq\tau_{yz}\)` to
  Proposition 1 before the plug-in asymptotic sign claim.
- Matched the appendix proof language to the main-text proposition by stating that the
  plug-in sign restriction follows asymptotically for regions away from equality at the
  threshold.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 35-page PDF.
- The LaTeX log contains no `Warning`, no `Overfull`, and no `undefined` references.
- PDF text extraction confirms the non-tie condition appears in both the main-text
  proposition and appendix proof.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies.

Current assessment:

- The measurement material is now appropriately narrow: it supports the main theorem
  with a population sign restriction and an asymptotic plug-in version, without pulling
  the paper toward a full empirical design.

## 2026-06-27: Round 11 Opening Alignment

Motivation:

- After the main theorem and measurement proposition were tightened, the title,
  abstract, and introduction still partly reflected an older framing around dynamic AI
  competition and same-cost thresholds.
- The opening needed to match the current paper: task-frontier primitive, project
  technology, observable race inversion, scalar minimality, and measurement discipline.

Changes made:

- Retitled the paper from `Horizon, Forgiveness, and Dynamic AI Competition` to
  `Horizon, Forgiveness, and AI Competition`, so the title no longer overweights
  appendix dynamics.
- Rewrote the abstract's main-result sentence around the observable race-inversion
  restriction: with a fixed project menu and fixed project costs, rankings reverse only
  when regional scarcity ratios straddle the same cost-normalized project threshold.
- Updated the abstract's scalar benchmark to use region-invariant project increments
  and costs, matching the theorem.
- Rewrote the introduction's theorem paragraph to state the unequal-cost threshold
  first and the same-cost threshold as a special case.
- Updated the early identification-protocol scalar falsification language from
  region-invariant project productivities to region-invariant project increments and
  costs.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 36-page PDF.
- The LaTeX log contains no `Warning`, no `Overfull`, and no `undefined` references.
- PDF text extraction confirms the new title and observable race-inversion abstract
  language appear in the manuscript.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies.

Current assessment:

- The opening now matches the paper's current theoretical core. The paper is less likely
  to be read as a general dynamic competition paper and more likely to be read as a
  theory of task-frontier race inversion.

## 2026-06-27: Round 12 Observable Wording Correction

Independent reviewer/AE assessment:

- A narrow AE review found that the title, abstract, and introduction now fit the top
  theory framing: task-frontier primitive, project-cost-adjusted race inversion, and
  scalar minimality.
- The only must-fix was that `observable` slightly overclaimed the theorem. Project
  rankings are observable, while scarcity ratios and project increments are model or
  measured objects.
- The reviewer advised against reopening mechanism, empirical-extension, data-flywheel,
  separability, dynamics, or welfare issues in the opening.

Changes made:

- Changed the abstract from `observable race-inversion restriction` to `a
  race-inversion restriction on observable project rankings`.
- Changed the introduction from `observable race-inversion theorem` to `a
  race-inversion theorem for project rankings`.
- Renamed the main theorem from `observable race inversion and scalar minimality` to
  `project-ranking race inversion and scalar minimality`.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 36-page PDF.
- The LaTeX log contains no `Warning`, no `Overfull`, and no `undefined` references.
- PDF text extraction confirms the corrected project-ranking language appears and the
  old observable-theorem wording is absent.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies.

Current assessment:

- The opening now states exactly what the theory proves: project-ranking reversals are
  disciplined by measured task-boundary scarcity, without claiming all sufficient
  statistics are directly observable.

## 2026-06-27: Round 13 Main-Text De-Surveying

Independent reviewer/AE assessment:

- A narrow AE review found that compressing the `Race Technologies` and `Low-Cost
  Imitation` discussion improved the top-journal theory framing. Engineering labels now
  sit below project technology \((\mathcal A,K_a,d_a)\), rather than becoming competing
  primitives.
- The AE identified two must-fix wording issues: deployment data was described too
  narrowly as only raising runtime productivity, and the phrase `not evidence for it`
  sounded defensive rather than like an initial paper draft.
- The AE suggested, optionally, replacing the casual phrase `Distillation attacks` with
  more standard economics language. The broader suggestion to retitle the technology
  section was not adopted because it would expand a narrow writing pass into a structural
  revision.

Changes made:

- Rewrote the CS mechanism paragraph so engineering categories matter only through the
  project step and cost they induce. Scaling, test-time compute, tools, memory, agent
  interfaces, and verification are now examples of induced \((d_a,K_a)\), not separate
  primitives.
- Generalized the deployment-data channel: data is valuable when it moves \(H_d\) or
  \(F_d\), or when usable traces raise future runtime productivity.
- Rewrote the low-cost imitation mechanism paragraph around the sorting condition,
  \(\kappa(R)\), and \(\omega(h,f)\), removing defensive evidence-disclaimer language.
- Changed `Distillation attacks the first region` to `Distillation erodes frontier premia
  in the first region`, which better matches the economics of low-cost imitation.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 36-page PDF.
- The LaTeX log contains no `LaTeX Warning`, no `Overfull`, and no `undefined`
  references.
- PDF text extraction confirms the revised low-cost imitation language appears.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The manuscript is less likely to be read as an AI systems survey. The main text now
  keeps GPU/runtime/tools/data/distillation subordinate to the paper's theoretical object:
  project-cost-adjusted movement of the horizon and fragility boundaries.

## 2026-06-27: Round 14 Scalar Benchmark Formalization

Independent reviewer/AE assessment:

- A narrow AE review found that formalizing the scalar benchmark before the main theorem
  improves the top-journal theory framing. The benchmark now gives the scalar model
  region-specific demand slopes \(\tilde B^R\), so the impossibility result is not driven
  by artificially homogeneous demand.
- The AE's must-fix comments were that the appendix proof needed to align with the
  theorem's strict positive-slope condition, and that `region-specific wedges` was too
  broad because common region demand slopes are already absorbed in \(\tilde B^R\).
- The AE also suggested softening `smallest representation` and clarifying that the
  scalar result is local at a fixed state.

Changes made:

- Added an explicit scalar benchmark before Theorem \ref{t:inversion}: one capability
  coordinate \(\bar q\), region-specific value \(\tilde W_R(\bar q)\), boundary slope
  \(\tilde B^R(\bar q)\), and region-invariant project increments and costs.
- Rewrote the scalar-minimality part of the main theorem as a statement about the sign
  of \(\gamma_y/K_y-\gamma_z/K_z\) across positive-slope regions.
- Replaced broad `region-specific wedge` language with project-region-specific
  productivities, costs, or adoption wedges in the local ranking.
- Replaced `smallest representation` with `minimal departure from the scalar capability
  benchmark`.
- Updated the appendix proof to treat zero-slope scalar regions as local ties and to
  state explicitly that the scalar result concerns local project rankings at a fixed
  state, not arbitrary finite scalar jumps with nonlinear regional values.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 36-page PDF.
- The LaTeX log contains no `LaTeX Warning`, no `Overfull`, and no `undefined`
  references.
- PDF text extraction confirms the scalar benchmark, project-region-specific wedge
  language, positive-slope proof language, and local finite-jump clarification appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The main theorem now has a cleaner benchmark comparison. A scalar model is allowed
  arbitrary region demand slopes, but not project-region-specific increments or costs.
  That makes the paper's scalar-minimality claim sharper and less vulnerable to a top
  theory referee's objection that the benchmark was informally defined.

## 2026-06-27: Round 15 Local Robustness to Nonseparability

Independent reviewer/AE assessment:

- A narrow AE review found that adding a local nonseparability remark improves the
  theory framing. It protects the race-inversion result from being read as an artifact
  of multiplicative separability while preserving the product-form success equation as
  the paper's microfoundation and measurement baseline.
- The AE's must-fix was that `the same project-ranking threshold follows` was too strong
  for nonseparable \(U_R\). The result is local and first-order: finite lumpy steps or
  comparisons near the cutoff can be affected by the Taylor remainder.
- The AE also suggested saying `local inversion` and writing the positivity condition as
  \(B_H^R(q)>0\) and \(B_F^R(q)>0\), avoiding any ambiguity from the word `fragility`.

Changes made:

- Replaced the informal product-form robustness paragraph after Theorem
  \ref{t:inversion} with Remark \ref{r:nonseparable}, `Local robustness to
  nonseparability`.
- The remark defines a general differentiable regional value function \(U_R(q_H,q_F)\)
  and boundary gradients \(B_H^R(q)=\partial U_R/\partial q_H\) and
  \(B_F^R(q)=\partial U_R/\partial q_F\).
- It states the local expansion
  \(U_R(q+d_a)-U_R(q)=B_H^R(q)d_{aH}+B_F^R(q)d_{aF}+o(\|d_a\|)\).
- It now explicitly restricts the generalized threshold statement to sufficiently small
  project steps, the cost-normalized intensity assumptions of Theorem
  \ref{t:inversion}, regions with \(B_H^R(q)>0\) and \(B_F^R(q)>0\), and comparisons
  away from equality at the cutoff.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 36-page PDF.
- The LaTeX log contains no `LaTeX Warning`, no `Overfull`, and no `undefined`
  references.
- PDF text extraction confirms the local nonseparability remark, sufficiently-small-step
  qualification, and local race-inversion language appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The main theorem is now better insulated against a likely top-theory objection:
  multiplicative separability delivers closed-form sufficient statistics and
  measurement discipline, but the race-inversion threshold is a local gradient result
  for any differentiable two-boundary task value.

## 2026-06-27: Round 16 Observable Restrictions and Identification De-Duplication

Independent reviewer/AE assessment:

- A narrow AE review found that compressing the early `Identification protocol` into
  `Identification logic` improves the AER/QJE theory framing. Section 2 now gives
  economic content and coordinate discipline for \(h\) and \(f\), while the formal
  restriction remains later in the paper.
- The AE also found that retitling `Predictions and Measurement` as `Observable
  Restrictions` makes the section read as discipline imposed by the theorem, not as an
  empirical-design section competing with the theory.
- The AE's must-fix was that the section still overclaimed by moving from project
  rankings to observed choices or frequencies. Proposition \ref{p:measurement} proves a
  cost-normalized value-ranking restriction; frequencies require an additional maintained
  mapping from rankings to choices.

Changes made:

- Replaced the detailed early identification protocol in Section \ref{sec:primitives}
  with a shorter `Identification logic` paragraph. It now states the two controlled task
  families that discipline \(h\) and \(f\), then points to Section \ref{sec:measurement}
  for the formal observable restriction.
- Retitled Section \ref{sec:measurement} from `Predictions and Measurement` to
  `Observable Restrictions`.
- Changed the section opening from `empirical content` to `observable content` and made
  the formal object the relative value of technologies across regions.
- Rewrote the sign-test language so the theorem predicts cost-normalized value rankings.
  Observed choice frequencies are now explicitly allowed only under a maintained mapping
  from value rankings to choices and comparable opportunity sets.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 36-page PDF.
- The LaTeX log contains no `LaTeX Warning`, no `Overfull`, and no `undefined`
  references.
- PDF text extraction confirms `Identification logic`, `Observable Restrictions`, the
  value-ranking language, and the maintained-mapping qualification for choice
  frequencies appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The measurement material now serves the theory rather than competing with it. The paper
  states an observable restriction on project value rankings, keeps the formal
  proposition narrow, and avoids promising an empirical choice-frequency model that the
  theorem does not prove.

## 2026-06-27: Round 17 Deployment-Data Notation Cleanup

Independent reviewer/AE assessment:

- A narrow AE review found that separating deployment-data stocks from project steps is a
  worthwhile notation improvement for a top theory audience. The state variable is now
  \(D_i\), while lower-case \(d_a,d_y,d_z\) remains reserved for project-induced local
  capability steps.
- The AE found no must-fix problem after the cleanup. Two optional clarifications were
  important enough to incorporate: state the uppercase/lowercase convention when \(D_i\)
  first appears, and identify \(\delta_D\) as data depreciation in the dynamic appendix.

Changes made:

- Renamed deployment-data stock from \(d_i\) to \(D_i\) throughout the technology,
  dynamic, measurement, and proof material.
- Renamed the associated derivatives and dynamic objects from \(H_d,F_d,V_d,q_d,\lambda_d,
  \delta_d\) to \(H_D,F_D,V_D,q_D,\lambda_D,\delta_D\).
- Renamed the private-race project difference from \(D=d_y-d_z\) to
  \(e=d_y-d_z\), with \(e_H,e_F,e_\beta\), so \(D\) is used only for data stock/channel
  notation.
- Added a short convention sentence at first use: uppercase \(D\) is data stock, while
  lower-case \(d_a\) is a project-induced capability step. Added the data-depreciation
  parenthetical in the dynamic law of motion.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  reports all targets up to date in `paper_task_frontier_race/site`.
- The LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no rerun
  prompt.
- PDF text extraction confirms the new \(D_i\) convention, \(q_D\), \(\lambda_D\),
  data-depreciation language, and \(e=d_y-d_z\) notation appear.
- Residual search finds no old lower-case deployment-data symbols such as \(d_i\),
  \(H_d,F_d,V_d,q_d,\lambda_d,\delta_d\), and no old private-difference notation
  \(D=d_y-d_z,D_H,D_F,D_\beta\).
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- This removes a real notation ambiguity before it becomes a reader distraction. The
  manuscript now uses lower-case \(d\) for local project steps and uppercase \(D\) for
  the deployment-data stock/channel, which makes the theory cleaner without changing the
  paper's primitives or contribution.

## 2026-06-27: Round 18 Private Race Tilt in Main Text

Independent reviewer/AE assessment:

- A narrow AE review found that moving the private race/rent-shifting cutoff into the
  main text improves the standalone paper. A top-theory reader will ask whether the
  race-inversion result survives business stealing; the new proposition answers that in
  the right place.
- The AE's must-fix comments were to make the proposition self-contained: add the
  positivity and differentiability assumptions, define baseline relative appeal \(r\),
  and state clearly that the result is a local first-order payoff comparison around
  \(d=0\).
- The AE suggested softening the framing from a full `competition version' to a
  `private-payoff analogue'; this was applied because it avoids overclaiming.

Changes made:

- Added a short abstract connection: private race incentives tilt, but do not replace,
  the same task-side threshold.
- Added an introduction paragraph separating the task-side value of moving a boundary,
  the market-share value of relative appeal, and project cost.
- Moved the private race cutoff into the main text as Proposition
  \(\ref{p:private-race-tilt}\). The proposition now assumes differentiability of
  \(W_R\) and \(\sigma\), \(B_H^R(q)>0\), \(B_F^R(q)>0\), \(\sigma(r)>0\), and
  \(\sigma'(r)\ge0\), and defines \(r\) as baseline relative market appeal.
- Linked the appendix proof to Proposition \(\ref{p:private-race-tilt}\), and updated
  the roadmap to mention the private-payoff race tilt.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 36-page PDF.
- The LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no rerun
  prompt.
- PDF text extraction confirms the main-text `Private race tilt' proposition, the
  baseline relative market appeal definition, the local first-order comparison language,
  and the private-payoff analogue language appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The paper now connects the race/competition narrative more tightly to the main
  theoretical threshold. Business stealing is treated as a disciplined private-payoff
  tilt rather than as an appendix-only caveat, which makes the manuscript read more like
  a complete initial paper.

## 2026-06-27: Round 19 Contribution Identification in the Introduction

Independent reviewer/AE assessment:

- A narrow AE review found that the new introduction paragraph improves the standalone
  paper because it directly answers the likely objection that the model merely names two
  quality dimensions and fits rankings ex post.
- The AE recommended keeping the paragraph, but flagged one must-fix overclaim: the
  falsification language needed to be about local frontier-value rankings under a fixed
  project menu and fixed project costs, not unrestricted observed choices or private
  rankings.
- The AE also suggested `controlled task manipulations' as a clearer phrase; this was
  applied because it improves precision without adding defensive prose.

Changes made:

- Added an introduction paragraph stating that horizon and fragility are task-side
  boundaries, not an arbitrary two-dimensional quality index.
- The paragraph now says the coordinates are disciplined by controlled task
  manipulations: dependency depth at fixed retryability and failure tolerance for
  horizon, and observability, reversibility, and tolerated failure at fixed chain length
  for fragility.
- Tightened the falsification statement to match the main theorem: for a fixed project
  menu and fixed project costs, local frontier-value rankings must be ordered by
  \(B_H^R/B_F^R\); repeated failures of that restriction reject the two-boundary model
  rather than invite relabeling.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 37-page PDF.
- The LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no rerun
  prompt.
- PDF text extraction confirms the new contribution-identification paragraph, the
  controlled-task-manipulation language, and the fixed-menu/fixed-cost local-ranking
  qualification appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The introduction now better distinguishes the paper from an unconstrained
  two-dimensional quality model. It states early what pins down the primitives and what
  kind of project-ranking evidence would count against the theory, while preserving the
  paper's initial-draft voice.

## 2026-06-27: Round 20 Infrastructure Shocks and Race Direction

Independent reviewer/AE assessment:

- A narrow AE review found that the infrastructure corollary improves the standalone
  paper because it answers the natural AI-economics question of where GPUs, compute, and
  infrastructure enter the model.
- The AE agreed with the intended economics: infrastructure is not a third task
  coordinate. It changes the feasible project menu, project costs, or induced capability
  steps, and therefore shifts the same cost-normalized project threshold.
- The AE's must-fix comments were to fix the suppressed technology state in the
  corollary, repeat the cost-normalized intensity inequalities, separate same-pair
  comparisons from project-menu changes, and use `weakly expands' for cutoff movements.

Changes made:

- Added abstract and introduction language clarifying that, holding task payoffs and
  success kernels fixed, GPU/infrastructure shocks shift race direction only through
  \(\mathcal A(\zeta)\), \(K_a(\zeta)\), and \(d_a(x,\zeta)\).
- Added Corollary \(\ref{c:infrastructure}\), defining an infrastructure-adjusted
  threshold \(\tau_{yz}(\tilde\zeta)\) for two infrastructure states and a held-fixed
  technology state \(x\), with \(q=(H(x),F(x))\).
- The corollary now explicitly states the horizon-intensive versus reliability-intensive
  cost-normalized inequalities at each infrastructure state.
- The corollary states that a ranking change can occur only when the regional scarcity
  ratio lies between the old and new thresholds. Lowering the threshold weakly expands
  the regions where the horizon-intensive project wins; raising it weakly expands the
  regions where the reliability-intensive project wins.
- Added an appendix proof subsection showing the result is Theorem
  \(\ref{t:inversion}\) indexed by infrastructure state. Menu changes are treated
  pairwise for newly feasible project pairs rather than as rankings of unavailable old
  pairs.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 37-page PDF.
- The LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no rerun
  prompt.
- PDF text extraction confirms the infrastructure-shock abstract language, main-text
  corollary, held-fixed technology state, cost-normalized intensity inequalities, weakly
  expands language, menu-change qualification, and appendix proof appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The paper now handles GPU/compute progress as a disciplined comparative static rather
  than an omitted primitive. This preserves the horizon-by-forgiveness task frontier
  while making the model better suited to current AI competition.

## 2026-06-27: Round 21 Cost-Performance Sorting and Saturation

Independent reviewer/AE assessment:

- A narrow AE review found that formalizing the low-cost imitation section improves the
  paper. The new proposition gives the saturation discussion a clean object: a
  lower-cost follower wins when its cost advantage exceeds the frontier system's
  regional finite-step performance advantage.
- The AE's must-fix comments were to define \(W_R\) and \(A_R\) inside the proposition,
  state the measurable-region and finite-value conditions, clarify that the slope bound
  is sufficient rather than necessary, define the componentwise rectangle in the
  supremum, and narrow the meaning of `saturation.'

Changes made:

- Added Proposition \(\ref{p:sorting}\), now titled `Cost-performance sorting.' It
  states the exact static sorting condition
  \(\kappa(R)\ge A_R(q^M,\Delta)=W_R(q^L)-W_R(q^M)\).
- The proposition decomposes the performance gap using regional boundary slopes and
  bounds it by \(\bar B_R(q^M,q^L)\|\Delta\|_1\), where \([q^M,q^L]\) is the
  componentwise rectangle between the follower and leader capability vectors.
- The text now says saturation is used in the limited sense of small regional boundary
  slopes over the follower-leader capability gap, not as a complete equilibrium theory
  of prices, diffusion, or imitation dynamics.
- Expanded the appendix proof to apply Theorem \(\ref{t:finite}\) to the regional
  density \(a(h,f)\mathbf 1\{(h,f)\in R\}\), derive the path decomposition, and prove the
  sufficient slope-bound condition.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 38-page PDF.
- The LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no rerun
  prompt.
- PDF text extraction confirms the `Cost-performance sorting' proposition, finite
  regional value condition, componentwise-rectangle definition, sufficient slope-bound
  language, limited saturation interpretation, and appendix proof appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The low-cost imitation section now has a sharper theory result rather than only an
  interpretive sorting equation. This strengthens the paper's levels-versus-slopes
  argument: large current markets can be saturated in the precise sense that remaining
  boundary slopes are too small to justify a frontier premium over low-cost followers.

## 2026-06-27: Round 22 Conclusion Synthesis

Independent reviewer/AE assessment:

- A focused AE review found that the revised conclusion improves the standalone paper by
  closing on the paper's actual contribution: race inversion, scalar minimality,
  infrastructure as threshold/menu movement, private tilt, and levels-versus-slopes
  sorting.
- The AE's must-fix comments were to avoid saying infrastructure always changes the same
  threshold when feasible menus change, reduce the theorem-checklist feel, and state
  private incentives as adding a rent-shifting term without removing the task-side
  scarcity ratio as the organizing statistic.

Changes made:

- Rewrote the final synthesis around a single object: project rankings are governed by
  regional boundary scarcity, not by a scalar quality index.
- Clarified that, for common feasible project pairs, infrastructure progress shifts
  thresholds through project costs or induced capability steps; when infrastructure
  changes the feasible menu, it changes which pairwise comparisons are available.
- Tightened the private-incentive language: private incentives add a rent-shifting term,
  but do not remove the task-side scarcity ratio as the organizing statistic.
- Kept the saturation/follower sorting implication, now tied more directly to the
  levels-versus-slopes distinction and the productivity of deployment traces.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 38-page PDF.
- The LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no rerun
  prompt.
- PDF text extraction confirms the new conclusion language on regional boundary
  scarcity, common feasible project pairs, rent-shifting private incentives, saturation
  as slopes rather than levels, and durable deployment-scale productivity appears.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The conclusion is now more like a top-journal theory-paper synthesis: it presents the
  later propositions as restrictions and comparative statics on the same boundary-scarcity
  object, rather than as a list of separate results.

## 2026-06-27: Round 23 Opening Framing

Independent reviewer/AE assessment:

- A focused AE review found that the revised opening is substantially stronger and now
  reads mostly like a standalone initial draft. The primitive is clear, the contribution
  is theory-first, and the scalar-model comparison reads as a minimality result rather
  than a defensive response.
- The AE's must-fix comments were to avoid calling the theorem a restriction on
  `observable project rankings,' narrow the falsification language to the maintained
  implementation under project and payoff controls, and keep infrastructure threshold
  language explicit.

Changes made:

- Reframed the opening puzzle: the issue is not whether AI systems improve, but why the
  direction of profitable improvement reverses across tasks at the same technological
  state.
- Replaced defensive `not arbitrary two-dimensional quality index' language with a
  positive operational-content paragraph: horizon and fragility are task-side boundaries
  disciplined by controlled changes in dependency depth, observability, reversibility,
  retryability, and failure tolerance.
- Changed the abstract's theorem description from `observable project rankings' to
  `frontier-value project rankings.'
- Tightened the falsification sentence: systematic failures reject the maintained
  two-boundary restriction under the stated project and payoff controls rather than
  licensing relabeling.
- Clarified the infrastructure paragraph: for common feasible project pairs, shocks move
  thresholds by changing costs or induced steps; when menus change, the available
  pairwise comparisons change; race direction is determined by the regional scarcity
  ratio relative to the relevant project threshold.
- Removed the loose `autonomous organizations' example from the opening applications
  paragraph.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 39-page PDF.
- The LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no rerun
  prompt.
- PDF text extraction confirms the new opening language on frontier-value project
  rankings, the task-boundary puzzle, operational content, the maintained two-boundary
  restriction, and the relevant project threshold appears.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The abstract and introduction now better match the paper's current theoretical core.
  The opening sells one mechanism, not a list of later appendages: AI race direction is
  governed by task-side boundary scarcity in horizon-forgiveness space, with costs,
  infrastructure, and private rents entering as project-side comparative statics.

## 2026-06-27: Round 24 Observable Restrictions Tightening

Independent reviewer/AE assessment:

- A focused AE review found that the revised observable-restrictions section is much
  sharper because it frames the restriction as local frontier-value rankings, not raw
  adoption or popularity.
- The AE's must-fix comments were to clarify when the same-threshold restriction applies,
  define the estimated boundary values before using the new index, make the threshold
  equivalence for \(\widehat S_{yz,R}\) explicit, qualify plug-in signs by consistency
  and away-from-threshold conditions, and restate positivity/finite-threshold conditions
  inside the measurement proposition.

Changes made:

- Rewrote the opening of Section \(\ref{sec:measurement}\) to state that the theory
  restricts local frontier-value rankings under maintained task, project, cost, and
  payoff controls rather than raw adoption counts.
- Clarified that the clean same-threshold race-inversion restriction applies to the same
  project pair with common costs and cost-normalized steps across regions. If steps or
  costs vary by region, the local value index remains meaningful, but the common-threshold
  cross-region test no longer follows.
- Defined \(\widehat B_H^R\), \(\widehat B_F^R\), and
  \(\widehat\Theta_R=\widehat B_H^R/\widehat B_F^R\) before introducing the value-ranking
  index.
- Added the empirical analogue
  \[
  \widehat S_{yz,R}
  =
  \frac{\widehat B_H^R \widehat d_{yH}+\widehat B_F^R \widehat d_{yF}}{\widehat K_y}
  -
  \frac{\widehat B_H^R \widehat d_{zH}+\widehat B_F^R \widehat d_{zF}}{\widehat K_z}.
  \]
- Defined \(\widehat\tau_{yz}\) and stated that, when \(\widehat B_F^R>0\) and the
  cost-normalized denominator is positive, the sign of \(\widehat S_{yz,R}\) is the sign
  of \(\widehat\Theta_R-\widehat\tau_{yz}\).
- Qualified plug-in claims by consistency, maintained controls, and regions away from
  the threshold; added the corresponding positivity and denominator conditions to
  Proposition \(\ref{p:measurement}\).
- Narrowed the final paragraph so the main discipline is local value rankings and
  comparable-opportunity adoption thresholds, while low-cost catch-up, frontier premia,
  and data productivity are marked as later-section implications.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 39-page PDF.
- The LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no rerun
  prompt.
- PDF text extraction confirms the local frontier-value ranking language, same-threshold
  qualification, estimated boundary-value definitions, plug-in sign qualification, and
  disciplined-first final paragraph appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The measurement section now reinforces the theory rather than making a loose empirical
  promise. It gives the paper a cleaner top-journal discipline: the same boundary-scarcity
  ratio that drives race inversion also organizes the local project-value ranking test.

## 2026-06-27: Round 25 AI-Systems Positioning

Independent reviewer/AE assessment:

- A focused AE review found that adding an AI-systems positioning paragraph improves the
  paper because it shows that the theory is aimed at real AI mechanisms without making
  those mechanisms primitive.
- The AE's must-fix comments were to avoid citation bunching, map each citation group to
  a specific mechanism, replace loose `measured performance' language with measured task
  success through engineering channels, avoid saying the exact same engineering
  improvement changes category, align the distillation sentence with the technology
  section, and keep the contribution framing economic rather than evidentiary.

Changes made:

- Expanded the introduction's positioning from one economics-literature paragraph to a
  compact two-part positioning: economic literatures first, then AI-systems mechanisms as
  inputs into the model.
- Reframed the AI-systems paragraph as organizing evidence, not validating the theory.
- Mapped mechanisms to model objects:
  scaling and compute-optimal training motivate base-stock projects; test-time compute
  motivates runtime projects; tool use and agent interfaces motivate workflow projects;
  software and long-task benchmarks discipline task cells.
- Stated that these engineering channels enter through a project-induced step \(d_a\), a
  cost \(K_a\), a task cell \((h,f)\), or trace productivity.
- Replaced `same engineering improvement' with `same engineering label,' preserving the
  model's rule that classification occurs after translating a project into steps and
  costs.
- Aligned distillation language with the technology section: distillation can raise
  effective capability and lower future runtime cost.
- Split long citation groups into shorter sentences to avoid LaTeX overfull boxes while
  preserving the citation-to-mechanism mapping.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 39-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no
  rerun prompt. An intermediate overfull issue from citation bunching was fixed before
  final verification.
- PDF text extraction confirms the AI-systems positioning paragraph, mechanism-specific
  citation mapping, same-engineering-label language, and distillation wording appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The paper is better positioned for top-journal readers: it now makes clear that current
  AI mechanisms motivate the project menu and task cells, while the contribution remains
  an economic theory of task-frontier race direction in horizon-forgiveness space.

## 2026-06-27: Round 26 Voice and Maintained-Restriction Cleanup

Review status:

- This was a narrow voice and consistency cleanup, not a substantive theory change, so no
  independent AE review was spawned. The changes align existing text with prior AE-guided
  wording around maintained project and payoff controls.

Changes made:

- Replaced the remaining first-person primitive definition with the neutral sentence:
  `Fragility \(f\) is the inverse of forgiveness.'
- Changed the introduction's sign-restriction sentence so systematic failures
  `discipline the maintained two-boundary restriction' rather than using a broad reject
  claim.
- Updated the primitives section to say the coordinates are not merely labels because,
  under maintained project and payoff controls, failures of the sign restriction
  discipline the two-boundary model.
- Replaced the defensive phrase `the original agentic racing model is not wrong' with a
  formal reduced-form statement: the one-dimensional agentic-racing model applies when
  horizon is the only scarce margin.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 39-page PDF.
- The LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no rerun
  prompt.
- PDF text extraction confirms the neutral fragility definition, maintained-restriction
  language, and one-dimensional reduced-form sentence appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The main text now reads less like a defended revision and more like a polished initial
  draft. The cleanup preserves the horizon-forgiveness primitive and improves consistency
  with the observable-restrictions section.

## 2026-06-27: Round 27 Productive Deployment Scale

Review status:

- Spawned an independent AE review after elevating deployment scale into a main-text
  proposition. The AE judged the move directionally valuable but required tighter
  primitives, assumptions, and proof connection to the existing sufficient-statistics
  theorem.

Changes made:

- Added Proposition `Marginal value of deployment scale' to the main text.
- Formalized the local value of one marginal unit of deployment scale as
  \(\zeta_R(q)\), combining direct deployment-data movement and distillation movement
  weighted by value-weighted usable trace intensity.
- Added regularity and sign conditions: measurable served region, finite positive
  regional value, bounded nonnegative trace intensity, nonnegative scale and distillation
  coefficients, and nonnegative capability derivatives for the monotonicity statement.
- Replaced a tautological productive-scale condition with marginal frontier-learning
  surplus \(\zeta_R(q)-\nu\).
- Clarified that large served value \(W_R(q)\) alone does not make scale productive when
  trace usability and the relevant boundary values are small.
- Added an appendix proof applying the local value theorem to the restricted density
  \(a(h,f)\mathbf 1\{(h,f)\in R\}\).
- Linked the static scale result to the dynamic appendix: the appendix adds market-share
  instability to separate productive tipping from pure lock-in.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 78 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 41-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no
  rerun prompt.
- PDF text extraction confirms the new proposition and appendix proof appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The paper now gives the deployment-scale/data-flywheel claim a formal main-text object:
  scale is valuable only insofar as it moves scarce horizon or forgiveness boundaries.
  This strengthens the top-journal theory contribution without turning the paper into an
  empirical or institutional narrative.

## 2026-06-27: Round 28 Rank Minimality of the Two-Boundary Frontier

Review status:

- Spawned an independent AER/QJE-style AE review after adding the rank-minimality result.
- The AE recommended keeping the result because it turns the scalar-versus-two-boundary
  claim into a clean local minimality statement, but required narrower benchmark-relative
  wording.

Changes made:

- Added Proposition `Local dimension of the task frontier' to the main text.
- Defined the local project-value matrix
  \(M_{Ra}=B_H^R(q)d_{aH}/K_a+B_F^R(q)d_{aF}/K_a\).
- Proved that a scalar frontier with region-invariant cost-normalized project directions
  can reproduce the local value matrix only when \(M\) has rank at most one.
- Proved that when regional boundary vectors span two dimensions and project directions
  span two dimensions, \(M\) has rank two, so the scalar benchmark cannot reproduce all
  local project values without reintroducing wedges.
- Added the appendix proof using \(M=BV^\top\).
- Added measurement language for the estimated matrix \(\widehat M_{Ra}\), while
  clarifying that this is an overidentifying diagnostic under maintained task-coordinate,
  project-step, cost, and choice-mapping assumptions.
- Applied the AE's must-fixes: cost-normalized scalar project notation, `rank at most
  one' rather than loose `rank one,' non-collinear scarcity wording, and local
  benchmark-relative scalar impossibility claims.
- Added three numerical checks to the math checker: determinant factorization, rank-two
  nondegeneracy for independent boundary/project directions, and rank-one collapse for
  collinear project directions.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 81 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 42-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no
  rerun prompt.
- PDF text extraction confirms the rank-minimality proposition, measurement paragraph,
  appendix proof, and AE-tightened wording appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The manuscript now has a stronger top-theory minimality claim: race inversion remains
  the headline result, while rank minimality shows that the horizon-forgiveness frontier
  is the minimal local dimension when both task scarcity and project directions are
  genuinely two-dimensional.

## 2026-06-27: Round 29 Exact Finite-Step Pure-Boundary Inversion

Review status:

- Spawned an independent AER/QJE-style AE review after adding the finite-step result.
- The AE recommended keeping the result because it closes the objection that the
  race-inversion theorem is only an infinitesimal artifact, but required tighter
  pure-boundary framing and edge-case handling.

Changes made:

- Added Proposition `Exact finite-step inversion for pure boundary projects' to the main
  text.
- Formalized exact finite-step values for a pure horizon project and a pure reliability
  project using average boundary values along the finite project paths:
  \(\bar B_H^R(q,\Delta_H)\) and \(\bar B_F^R(q,\Delta_F)\).
- Stated the exact cost-normalized comparison first in cross-multiplied form, avoiding
  unnecessary ratio assumptions when boundary mass is zero.
- Gave the ratio cutoff only when \(\bar B_F^R(q,\Delta_F)>0\).
- Clarified that finite-step reversal requires average boundary-scarcity ratios, where
  defined, to straddle the same finite-project threshold.
- Qualified the local-limit claim: the finite cutoff converges to the corresponding
  local cutoff when \(\Delta_F/\Delta_H\) is fixed or converges.
- Narrowed the framing to pure-boundary projects, leaving mixed finite projects to the
  existing finite-step value theorem and avoiding a distracting path-integral
  generalization.
- Added the appendix proof by applying Theorem \ref{t:finite} to the restricted regional
  density \(a(h,f)\mathbf 1\{(h,f)\in R\}\).
- Strengthened the math checker with unequal-cost finite-step tests and value-identity
  checks for both long-forgiving and short-fragile regions.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 44-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no
  rerun prompt.
- PDF text extraction confirms the finite-step proposition, proof, pure-boundary
  framing, and local-limit qualification appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The paper now handles a natural top-theory objection more cleanly: although the main
  inversion theorem is local for general project directions, the same cutoff logic holds
  exactly for lumpy pure-boundary projects after replacing point boundary values with
  average boundary values. This strengthens the bridge between lumpy AI investments and
  the horizon-forgiveness theory without changing the main primitive.

## 2026-06-27: Round 30 Roadmap and Result-Hierarchy Cleanup

Review status:

- No independent AE review was spawned because this was a narrow consistency and
  presentation cleanup, not a substantive theory change.

Changes made:

- Fixed the introduction roadmap, which still said the private-payoff race tilt was in
  the appendix even though the proposition now appears in the main text.
- Rewrote the roadmap to distinguish the headline result from supporting results:
  the race-inversion theorem is the main theorem; the finite-step and rank-minimality
  propositions support it; the infrastructure corollary and private race tilt are
  comparative-static and private-payoff extensions.
- Updated the appendix description to say it contains dynamic extensions, tipping and
  stopping results, the private-social frontier wedge, and step-by-step proofs.
- Replaced an ambiguous post-corollary phrase, `This theorem,' with `The inversion
  theorem,' so the discussion clearly points back to the main theorem rather than the
  nearest corollary.
- Added a conclusion sentence noting that the finite-step cutoff logic holds exactly for
  lumpy pure-boundary projects after replacing point boundary values with average
  boundary values.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 44-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no
  rerun prompt.
- PDF text extraction confirms the revised roadmap, result hierarchy, and conclusion
  sentence appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The manuscript now reads less like an accumulation of added results and more like a
  hierarchical theory paper: one main race-inversion theorem, with finite-step,
  rank-minimality, infrastructure, private-payoff, measurement, and imitation results
  clearly positioned around it.

## 2026-06-27: Round 31 Productive-Scale Placement Cleanup

Review status:

- No independent AE review was spawned because this was a structural placement cleanup,
  not a substantive theory change.

Changes made:

- Moved Proposition `Marginal value of deployment scale' from before the main
  race-inversion theorem to after the race-direction corollary.
- Added a short transition stating that deployment scale is valuable for frontier
  learning only through the same boundary statistics.
- Updated the introduction roadmap to say finite-step and rank-minimality results
  support the main theorem, infrastructure and private race are extensions, and the
  deployment-scale proposition applies the boundary logic to data flywheels.
- Preserved the proposition content, proof, and labels.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 44-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no
  rerun prompt.
- PDF text extraction confirms the new result order: main theorem and race-direction
  corollary now appear before the deployment-scale proposition.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The main theorem now appears before the deployment-scale application, improving the
  result hierarchy and top-journal readability without changing the theory.

## 2026-06-27: Round 32 Abstract and Opening Tightening

Review status:

- Spawned an independent AER/QJE-style AE review focused on the revised abstract and
  introduction opening.
- The AE judged that the opening now has one clear contribution, but recommended
  tightening the local nature of the main theorem, avoiding overclaims about the product
  form, fixing the description of \(C\), orthogonalizing the horizon/fragility
  identification language, and demoting secondary extensions in the abstract.

Changes made:

- Rewrote the abstract around one spine: puzzle, horizon-forgiveness task primitive,
  local race-inversion theorem, scalar/rank restriction, and the levels-versus-slopes
  implication.
- Replaced the abstract's loose description of \(C\) as the value of relaxing both
  boundaries with the correct description: cross-boundary mass governing
  complementarity.
- Added `local frontier-value' language to the abstract, introduction, measurement
  section, and conclusion so the theorem is not read as an arbitrary finite-project
  ranking result.
- Replaced the claim that the product form is a minimal representation with a narrower
  statement that it is a baseline separable representation; the local ranking result
  only needs differentiable regional value in the two boundary coordinates.
- Tightened identification language: horizon manipulations now hold the task-level
  reliability threshold fixed, possibly by adjusting retry, verification, or tolerance;
  fragility manipulations vary reversibility, observability, or tolerance at fixed
  coordination depth.
- Demoted infrastructure, private incentives, and deployment scale out of the abstract's
  main contribution paragraph, leaving them as secondary extensions in the introduction
  and main text.
- Replaced prescriptive `firms should race' wording with frontier-value ranking language.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 44-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no
  rerun prompt.
- PDF text extraction confirms the new abstract, local-frontier-value wording,
  orthogonalized identification language, and measurement/conclusion consistency fixes
  appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The paper's first read is now cleaner: the abstract and opening sell one theoretical
  contribution rather than a collection of mechanisms, while the auxiliary GPU,
  private-incentive, deployment-scale, and saturation results remain available as
  extensions.

## 2026-06-27: Round 33 Horizon-Fragility Identification Tightening

Review status:

- Spawned an independent AER/QJE-style AE review focused narrowly on the Task
  Primitives identification paragraphs and the Sequential Microfoundation.
- The AE agreed that the vulnerability was the right one to address, but required two
  must-fixes: the sequential model should be described as an isoquant reduction rather
  than a derivation of the separable probability kernel, and raw increases in serial
  depth should be called diagonal movements unless fragility is explicitly held fixed.

Changes made:

- Rewrote the operational content so capability \(q_H\) is measured by greater
  coordination depth after holding the task-level reliability threshold fixed, while
  \(q_F\) is measured by low-tolerance tasks at fixed coordination depth.
- Clarified that raw task changes can move both reduced coordinates; the theory is
  about the induced location \((h,f)\), not about assigning each benchmark modification
  to exactly one coordinate.
- Strengthened the identification logic: a raw increase in essential stages is not a
  pure horizon manipulation. Holding retries, observability, tolerance, and local burden
  fixed, it moves the task diagonally because both \(h\) and the reduced fragility
  threshold \(f\) rise.
- Defined a pure horizon-family comparison as an iso-fragility comparison: serial depth
  varies only after compensating changes in retry, verification, tolerance, or local
  burden keep the task-level reliability threshold fixed.
- Added the domain caveat that if compensation is unavailable, the model identifies the
  induced movement in \((h,f)\), not a pure horizon direction.
- Rewrote the microfoundation bridge: the sequential theorem is an isoquant reduction,
  not a full distributional equivalence. The separable success equation imposes an
  additional common-kernel benchmark; without it, local boundary logic remains but
  sufficient statistics should use the task-specific reliability slope.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 45-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no
  rerun prompt.
- PDF text extraction confirms the diagonal-movement, iso-fragility, common-kernel
  benchmark, and isoquant-reduction language appears.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The primitive is now more defensible for a top theory audience: horizon and fragility
  are treated as reduced task coordinates recovered by controlled comparisons, not as
  mechanically independent physical attributes of raw benchmark changes.

## 2026-06-27: Round 34 Measurement Benchmark Consistency

Review status:

- Spawned an independent AER/QJE-style AE review focused narrowly on the Observable
  Restrictions section and the nonseparability remark.
- The AE found no remaining must-fix issue: the measurement section now consistently
  treats the product kernel as a maintained common-kernel benchmark, and the
  non-common-kernel local-gradient fallback is coherent.

Changes made:

- Reframed the measurement equation as a `closed-form measurement benchmark' using the
  common-kernel success equation, rather than the unconditional measurement equation.
- Added a non-common-kernel measurement fallback: if the common-kernel restriction is not
  imposed, estimate local gradients \(\widehat B_H^R=\partial \widehat U_R/\partial q_H\)
  and \(\widehat B_F^R=\partial \widehat U_R/\partial q_F\) using the task-specific
  local slopes implied by the maintained success model.
- Clarified that the pairwise inversion and rank restrictions are restrictions on local
  boundary values, not on the product-kernel functional form.
- Added measurement language stating that raw serial-depth changes without compensation
  are diagonal movements in \((h,f)\), not pure horizon cells.
- Revised the nonseparability remark so separability is used to write and measure
  closed-form boundary statistics, while the ranking theorem needs only local gradients
  in the reduced task coordinates.
- Updated Proposition `Testable race-inversion restriction' so task cells may recover
  either the closed-form population objects \((h_r,f_r,a_r)\) under the common-kernel
  benchmark or, more generally, the local boundary values \((B_H^R,B_F^R)\).
- Replaced residual race-direction wording with `local frontier-value ranking' language
  to avoid overstating equilibrium or welfare claims.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 45-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `undefined`, and no
  rerun prompt.
- PDF text extraction confirms the common-kernel benchmark, local-gradient fallback,
  diagonal-movement measurement language, and revised proposition statement appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The measurement section is now aligned with the primitive and microfoundation:
  closed-form formulas are a transparent benchmark, while the main theorem's observable
  content is the local boundary-value restriction.

## 2026-06-27: Round 35 Literature Positioning Tightening

Review status:

- Spawned an independent AER/QJE-style AE review focused narrowly on the introduction's
  related-literature and contribution-positioning paragraphs.
- The AE required two must-fixes: lead with the single theory contribution rather than
  `four literatures,' and compress the AI-systems paragraph so it disciplines the
  project map rather than reading as a second contribution.

Changes made:

- Rewrote the literature-positioning block so it begins with the paper's single
  contribution: making the AI task frontier, indexed by horizon and forgiveness with
  fragility as inverse, the state variable that directs innovation.
- Reframed the task literature contrast: existing work studies substitution,
  complementarity, and new human tasks, while this paper studies the frontier of
  remaining AI tasks and which boundary a project moves.
- Reframed the directed-innovation contrast: existing models organize who races and how
  hard; this paper adds the task-side direction of the race.
- Reframed the GPT/diffusion contrast around levels versus slopes: broad diffusion in
  large served regions can coexist with frontier races in smaller high-slope regions.
- Reframed scalar AI-progress models as valid reduced forms only when regional scarcity
  or project directions are effectively one-dimensional, with the rank restriction
  stating when that reduction fails.
- Compressed the AI-systems paragraph so scaling, test-time compute, tools, agents,
  benchmarks, and distillation enter only as discipline for feasible project steps,
  costs, task cells, and trace productivity.
- Removed long citation command blocks from the introduction to avoid LaTeX overfull
  boxes while keeping the full bibliography in place.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 45-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the new single-contribution literature positioning and
  compressed AI-systems paragraph appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The introduction now positions the paper more like a top theory submission: one
  contribution first, then precise contrasts to task models, directed innovation, GPT
  diffusion, scalar AI progress, and AI-systems evidence.

## 2026-06-27: Round 36 Main-Theorem Wording Consistency

Review status:

- No independent AE review was spawned because this was a narrow theorem-facing wording
  cleanup, not a substantive theory change.

Changes made:

- Replaced `CS mechanisms' language with `engineering mechanisms' and `project map'
  language in the race-technology section.
- Changed the pre-theorem phrase from `sharp prediction' to `sharp local restriction'
  so the main theorem is framed as a local frontier-value restriction rather than a full
  equilibrium prediction.
- Defined the cross-region reversal as a `local frontier-value inversion' rather than a
  generic race inversion.
- Replaced post-theorem `can dominate' language with `can have higher local frontier
  value' language.
- Preserved the theorem statement, proof logic, and result ordering.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 45-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the local-restriction, frontier-value inversion, and
  engineering-mechanism wording appears.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The main theorem is now less likely to be misread as a complete equilibrium race
  prediction. The surrounding text consistently presents it as a local project-ranking
  and scalar-minimality restriction.

## 2026-06-27: Round 37 Abstract and Conclusion Framing Tightening

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after the first framing pass.
- The reviewer treated the revision as close, but flagged two essential abstract risks:
  the sufficient-statistics sentence could still sound too dependent on the product
  benchmark, and the final abstract sentence could sound like a broad market-level
  prediction rather than a local comparative-static implication.
- The reviewer also gave an optional comment that `reliability-intensive project'
  language might blur the primitive with the project direction. I incorporated this
  only in the abstract where the risk was highest.

Changes made:

- In the abstract, made the product equation explicitly the `baseline common-kernel
  representation' and changed the sufficient-statistics sentence to begin `In this
  benchmark,' so the closed-form statistics are presented as the benchmark object, not
  as the source of the general local ranking result.
- Replaced abstract language saying a reliability-intensive project beats another
  project with language saying the competing project `relaxes fragility,' preserving the
  paper's primitive horizon-forgiveness/fragility distinction.
- Changed the abstract's final claim from `The theory separates...' to `The comparative
  statics distinguish...' to avoid implying a full market-level equilibrium prediction.
- In the conclusion, replaced stronger `microfounded' language with a
  `sequential-task reduction' at a fixed task-level success standard.
- Reframed the conclusion's central punchline as a `central local restriction' rather
  than a broad economic implication, and clarified that the common-kernel product form
  is the transparent benchmark, not the source of the local ranking result.
- Added `for frontier movement' to the deployment-scale sentence so scale is not
  overclaimed as generally productive whenever traces exist.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 45-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the new common-kernel benchmark wording and the
  conclusion's `central local restriction' wording appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The paper's first and last impressions are now more consistent with the theorem's
  actual scope: a two-boundary theory of local project-value rankings and scalar
  minimality, not a full equilibrium theory of adoption, diffusion, or market shares.

## 2026-06-27: Round 38 Main-Theorem Domain and Pairwise-Ranking Rigor

Review status:

- Spawned an independent AER/QJE-style AE/reviewer focused on the main race-inversion
  theorem, its domain conditions, and surrounding proof text.
- The reviewer found two essential issues: the introduction overstated the theorem by
  saying local project rankings are ordered by \(B_H^R/B_F^R\) for a fixed menu, and
  some informal theorem/proof summaries omitted positive-boundary or positive-denominator
  conditions.
- I accepted both essential comments and did not make broader optional changes.

Changes made:

- Rewrote the introduction's theorem summary so the general local value object is
  \(b_R(q)\cdot v_a\), with \(b_R\) the regional boundary vector and \(v_a\) the
  cost-normalized project direction.
- Clarified that the scalar ratio \(B_H^R/B_F^R\) gives a common threshold only for a
  pairwise comparison between a horizon-intensive project and a fragility-relaxing
  project, not for every possible ranking of a general project menu.
- Defined \(\Theta_R=B_H^R/B_F^R\) only for regions with \(B_F^R(q)>0\).
- Added positive-boundary conditions to the main theorem's cross-region reversal
  statement and synchronized the appendix proof text with that domain.
- Updated the theorem-map caption, infrastructure-shock proof, and measurement proof so
  they no longer suppress the defined-ratio, positive-boundary, or positive-denominator
  qualifications.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 45-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the new pairwise-restriction and positive-boundary
  wording appears.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The main theorem is now more defensible as a top-theory result: it states a precise
  pairwise local restriction with explicit domain conditions, while the rank proposition
  carries the many-region/many-project version.

## 2026-06-27: Round 39 Sufficient-Statistics Regularity and Primitive Hygiene

Review status:

- Spawned an independent AER/QJE-style AE/reviewer focused on the task primitives,
  sufficient-statistics theorem, finite-step theorem, and appendix proof.
- The reviewer found no essential remaining risks. It confirmed that the stated
  regularity is sufficient for differentiating under the integral and for the mixed
  boundary derivative, without requiring second derivatives.
- The reviewer also confirmed that treating \(C\) as a mixed-boundary statistic does not
  threaten the core horizon-forgiveness/fragility primitive.

Changes made:

- Stated that the task space \(\mathcal T\subseteq\mathbb R^2\) is measurable.
- Replaced the phrase `agentic raising statistic' with `finite-step frontier value of a
  capability improvement,' which is more transparent and less jargon-heavy.
- Added measurability and monotonicity language to the sufficient-statistics theorem:
  \(a\in L^1_+(\mathcal T)\), \(G_H\) and \(G_F\) are continuously differentiable and
  increasing, and \(g_H,g_F\) are bounded and continuous.
- Clarified in both the introduction summary and theorem discussion that \(C\) is a
  mixed-boundary statistic generated by the two primitive coordinates, not a third task
  coordinate.
- Replaced the appendix proof phrase `forgiveness derivative of \(B_H\)' with the
  technically accurate `\(q_F\) derivative of \(B_H\)'.
- Reframed the sufficient-statistics paragraph after the theorem as replacing scalar
  quality language with boundary values, rather than introducing three primitive state
  variables.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 45-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the new measurable-task-space, finite-step-frontier-value,
  regularity, and mixed-boundary-statistic wording appears.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The primitive foundations now read more like a clean theory paper: regularity is
  explicit, \(A(q,\Delta)\) is named economically, and \(C\) is disciplined as an
  implication of the two-boundary task frontier rather than an added dimension.

## 2026-06-27: Round 40 Technology-Layer and Full-Stack Complementarity Tightening

Review status:

- Spawned an independent AER/QJE-style AE/reviewer focused on the technology,
  infrastructure, race-direction, and appendix proof language.
- The reviewer agreed that replacing `market capture for data' with
  `deployment-data accumulation' keeps the corollary inside the held-fixed
  rent-shifting frame.
- The reviewer flagged one essential consistency issue: saying a large \(C(q)\) makes
  finite-project complementarity large is exact only locally; finite-step
  complementarity is governed by the path integral of \(C\).

Changes made:

- Replaced the overstrong statement that `full-stack racing has the highest frontier
  value' with a finite-step interaction-value statement: a combined project earns an
  additional task-side interaction value when its induced step raises both boundaries.
- Clarified that for finite steps the extra value is the \(I(q,\Delta)\) term in
  Theorem \ref{t:finite}.
- Incorporated the AE's essential comment by distinguishing the small-step role of
  local \(C(q)\) from finite-step complementarity governed by the integral of \(C\) along
  the project path.
- Replaced `market capture for data' language in the race-direction corollary with
  `deployment-data accumulation,' reserving market-capture/rent-shifting language for
  the private-payoff results.
- Updated the appendix proof summary so the full-stack/complementarity statement follows
  from induced project steps and Theorem \ref{t:finite}, not from an unconditional
  ranking claim.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 45-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the new finite-step-complementarity and
  deployment-data-accumulation wording appears.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The technology layer now keeps GPU, runtime, deployment data, and distillation as
  project-side mechanisms. It no longer overclaims full-stack racing as unconditionally
  best, and it preserves the paper's core claim that race direction is governed by
  induced steps, costs, and task-boundary scarcity.

## 2026-06-27: Round 41 Observable-Restrictions Framing Tightening

Review status:

- Spawned an independent AER/QJE-style AE/reviewer focused on the observable-restrictions
  section, the primitives paragraph that points to it, and the appendix proof subsection.
- The reviewer found no essential remaining risks. It confirmed that the section now
  states a pairwise local value-ranking sign restriction rather than an adoption
  prediction, and that the common-threshold claim is properly limited to common project
  steps and costs.

Changes made:

- Renamed the measurement proposition from `Testable race-inversion restriction' to
  `Observable race-inversion restriction' to avoid implying a direct reduced-form
  adoption test.
- Replaced language saying measured horizon and fragility must `predict project
  rankings' with language saying measured task coordinates, project steps, and costs
  imply pairwise local value-ranking restrictions through the regional boundary ratio.
- Rewrote the task-primitives falsifiability sentence so adoption patterns enter only
  with a maintained mapping from value rankings to choices.
- Changed the measurement table heading from `Predicted race object' to
  `Model-implied race margin'.
- Replaced the final measurement paragraph's `predict local value rankings and adoption
  thresholds' language with `organize pairwise local value-ranking signs,' again noting
  that adoption frequencies or thresholds require an additional choice mapping.
- Updated the appendix subsection title to `Observable Race-Inversion Restriction'.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 45-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the new observable-restriction and choice-mapping wording
  appears.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The observable-content section now supports the theory without overselling it as a
  direct adoption-count prediction. It states the empirically disciplined object as a
  maintained-controls, pairwise local value-ranking restriction.

## 2026-06-27: Round 42 Low-Cost Imitation and Saturation Tightening

Review status:

- Spawned an independent AER/QJE-style AE/reviewer focused on the low-cost imitation,
  saturation, conclusion summary, and cost-performance-sorting proof.
- The reviewer flagged one essential issue: the section defined saturation using point
  boundary slopes, while Proposition \ref{p:sorting} is a finite-gap result over the
  follower-leader capability rectangle.
- I accepted that comment and revised the saturation display to use the finite-gap
  slope bound \(\bar B_R(q^M,q^L)\), with point slopes only as the small-gap shorthand.

Changes made:

- Replaced adoption/equilibrium language around Proposition \ref{p:sorting} with
  delivered-net-value comparison language.
- Changed the sufficient slope-bound line from a condition for `follower adoption' to a
  condition for the follower to be preferred on delivered net value.
- Replaced `Cheap followers win' and similar market-outcome language with `cheap
  followers are preferred on delivered net value'.
- Reframed saturation as small boundary slopes over the follower-leader capability gap,
  not as a complete equilibrium theory of prices, diffusion, or imitation dynamics.
- Updated the consumer/frontier-region display so saturation is
  \(W_{\mathcal C}(q)\) large with \(\bar B_{\mathcal C}(q^M,q^L)\) small, while the
  frontier case has \(\bar B_{\mathcal F}(q^M,q^L)\) large.
- Clarified that point boundary values \(B_H^R(q)+B_F^R(q)\) are the small-gap/local
  shorthand.
- Tightened the conclusion so low-cost followers are said to be preferred on delivered
  net value through cost, distribution, and distillation, rather than making a full
  market-equilibrium claim.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 45-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the delivered-net-value and finite-gap saturation wording
  appears.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The low-cost imitation section now supports the opening puzzle as a disciplined
  levels-versus-slopes result. It avoids claiming a full adoption or price equilibrium
  while preserving the key economics of low-cost catch-up in saturated regions and
  frontier premia near scarce task boundaries.

## 2026-06-27: Round 43 Dynamic Local-Instability and Lead-Growth Tightening

Review status:

- Spawned an independent AER/QJE-style AE/reviewer focused on the dynamic race,
  data-distillation local-instability, lead-growth, and stopping sections.
- The reviewer flagged five essential or near-essential issues: the lead-growth section
  made an invalid leader-only "only if" claim; the dynamic theorem summary overstated the
  role of sufficient statistics in full dynamic equilibrium; the local-instability
  theorem needed \(C^1\) demand and local-asymptotic-stability language; the stopping
  result needed uniform-over-rival-projects and zero-cost no-investment qualifications;
  and the trace-productivity discussion treated \(\bar\omega(q)\) as necessary even
  though direct deployment-data productivity can enter \(\chi(q)\).
- I accepted these comments and revised the manuscript accordingly.

Changes made:

- Reframed the dynamic theorem interpretation: \(A\), \(B_H\), and \(B_F\) organize the
  current frontier and rent-shifting components, while equilibrium project choice can
  also depend on continuation values over the full strategic state.
- Renamed and reframed the data-distillation result as a local-instability threshold
  rather than a general tipping prediction.
- Added the \(C^1\)-near-zero regularity condition for \(\sigma\) and stated local
  asymptotic stability under the displayed one-dimensional map.
- Replaced the overstrong statement that local lead growth is possible only under
  leader-only racing with the correct general condition
  \(\alpha_Lp_L(s)-\alpha_Fp_F(s)>\rho x\), then treated leader-only, mutual, and
  follower-only regimes as special cases.
- Qualified the stopping result so the bound is uniform over rival projects in the
  maintained sequence and no-investment is available at zero cost.
- Replaced trace-productivity-as-necessary language with the correct
  productivity-weighted appeal effect \(\chi(q)\), noting that trace productivity
  matters through the distillation channel.
- Updated the math-check labels from tipping language to local-instability and
  lead-growth language.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the local-instability threshold, productivity-weighted
  appeal effect, expected-leader-step lead-growth condition, and uniform stopping
  qualifications appear.
- PDF text extraction confirms the rejected old phrases `possible only when the
  leader-only', `same sufficient statistics still organize', and `tipping threshold' do
  not appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The dynamic appendix now reads as a disciplined extension of the task-frontier theory
  rather than a freestanding prediction of industrial tipping. It preserves the useful
  economics of data flywheels, lead growth, and stopping while making the local nature and
  maintained assumptions explicit.

## 2026-06-27: Round 44 Front-Matter Contribution Tightening

Review status:

- Spawned an independent AER/QJE-style AE/reviewer focused on the abstract,
  introduction, literature-positioning paragraph, conclusion framing, and nearby
  low-cost imitation wording.
- The reviewer reported that no essential issue remained: the opening puzzle is bounded
  by delivered-net-value and frontier-value comparisons, the horizon-by-forgiveness
  primitive is presented as a standalone theory contribution, the scalar-minimality/rank
  restriction is understandable, and the front matter does not visibly slip back into
  broad adoption or race-outcome prediction.

Changes made:

- Reframed the abstract's first sentence from low-cost systems "catching up" while
  frontier firms keep "racing" to a premia-based question: why low-cost AI systems can
  erase frontier-model premia in some task markets while small frontier improvements
  remain valuable in others.
- Added "directed AI innovation" to the abstract to make the paper's top-level economic
  contribution clearer before the AI mechanisms appear.
- Replaced the abstract's "imitation and cost competition dominate" language with the
  more disciplined delivered-net-value comparison for lower-cost followers.
- Rewrote the introduction's opening paragraph so it describes frontier-model premia and
  the value of small improvements rather than broad market races.
- Clarified that the contribution is not a taxonomy: a taxonomy can name regions, but the
  theory restricts which projects should be valuable there.
- Updated the literature-positioning paragraph so the paper adds a task-side direction
  for innovation, and broad diffusion can coexist with high frontier premia rather than
  "frontier races."
- Replaced residual "frontier racing" language in the saturation discussion with
  "frontier-premium" and "frontier value" language.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the new front-matter wording appears: "directed AI
  innovation," "frontier-model premia," lower-cost followers preferred on delivered net
  value, and the taxonomy-versus-restriction sentence.
- Text searches confirm rejected old phrases such as "frontier firms keep racing,"
  "frontier firms continue to race," "frontier races," "Frontier racing," and "race
  remains about" do not appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The first pages now present the paper as a theory of directed AI innovation built on the
  horizon-forgiveness task frontier. The motivation remains connected to AI markets, but
  the claims are stated as project-value, frontier-premium, and delivered-net-value
  restrictions rather than broad industry predictions.

## 2026-06-27: Round 45 Figure and Observable-Restriction Table Alignment

Review status:

- Spawned an independent AER/QJE-style AE/reviewer focused on the theorem-map figure and
  observable-restrictions table.
- The reviewer agreed that replacing `race' and `dominate' language with value-margin and
  delivered-net-value language improves rigor, because the paper studies local
  project-value rankings rather than raw adoption or market dominance.
- The reviewer flagged two essential details: the lower-left figure label should not
  equate simply being behind both boundaries with low slopes, and the frontier-region
  violation row should not treat lower-cost-follower preference as a violation unless the
  measured cost advantage is insufficient.
- I accepted both comments.

Changes made:

- Changed the theorem-map lower-left label from "Behind both boundaries / low frontier
  slope / lower-cost delivery" to "Saturated interior / low frontier slope / lower-cost
  delivery."
- Changed the figure labels from "runtime/tools race," "reliability race," and
  "full-stack race" to "runtime/tools margin," "reliability margin," and
  "combined-step value."
- Changed the observable table header from "Model-implied race margin" to
  "Model-implied value margin."
- Replaced table violation language such as "projects dominate," "premia rise," and
  "erase premia" with local-value and delivered-net-value language.
- Added the necessary condition in the frontier-region violation row: lower-cost
  followers being preferred is a violation only when this occurs despite insufficient
  measured cost advantage.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the new figure/table wording appears, including
  "Saturated interior," "combined-step value," "Model-implied value margin," and
  "insufficient measured cost advantage."
- Text searches confirm rejected old phrases such as "runtime/tools race," "reliability
  race," "full-stack race," "Model-implied race margin," "projects dominate," "premia
  rise," and "erase premia" do not appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The visual theorem map and observable-restrictions table now use the same disciplined
  object as the main theorem: local value margins and delivered-net-value comparisons
  under maintained controls. This reduces the risk that readers interpret the theory as a
  direct prediction of adoption, dominance, or race outcomes.

## 2026-06-27: Round 46 Finite-Gap Measurement Table Consistency

Review status:

- Spawned an independent AER/QJE-style AE/reviewer focused on the observable-restrictions
  table and its relation to the low-cost imitation sorting proposition.
- The reviewer reported that no essential issue remained after replacing point-slope
  \(B_H^R(q)+B_F^R(q)\) language with the finite-gap object
  \(\bar B_R(q^M,q^L)\). The reviewer agreed that the sorting comparison is finite-gap,
  that the symbol is adequately introduced before table use, and that the small-gap
  shorthand sentence is sufficient.

Changes made:

- Changed the measurement table's saturated-consumer-region row from small point boundary
  values to small \(\bar B_R(q^M,q^L)\).
- Changed the frontier-region row from large point boundary values to large
  \(\bar B_R(q^M,q^L)\).
- Added a pre-table definition: \(q^M\) and \(q^L\) denote the lower-cost and frontier
  systems, and \(\bar B_R(q^M,q^L)\) is the finite-gap boundary-slope bound over the
  componentwise rectangle between them, with the formal definition in the low-cost
  imitation section.
- Added a post-table small-gap clarification: for small follower-leader gaps,
  \(\bar B_R(q^M,q^L)\) reduces to the local shorthand
  \(B_H^R(q)+B_F^R(q)\).

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the finite-gap boundary-slope definition, the
  \(\bar B_R(q^M,q^L)\) table entries, and the small-gap shorthand sentence appear.
- Text searches confirm the old table patterns using point slopes in the saturated and
  frontier rows do not appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The measurement table is now consistent with Proposition \ref{p:sorting}: saturation
  and frontier premia are stated over the relevant follower-leader capability gap, with
  point boundary values only as the local small-gap shorthand. This closes a likely
  referee objection about mixing local slopes with finite delivered-net-value sorting.

## 2026-06-27: Round 47 Visible Terminology Alignment

Review status:

- No independent AE/reviewer was spawned for this round because the changes are visible
  terminology alignment only: no theorem, proof, primitive, maintained condition, or
  economic claim changed.

Changes made:

- Replaced remaining visible "race direction" wording with "project direction" where
  the text refers to the direction of frontier-value incentives rather than an adoption
  or market-race outcome.
- Replaced "local private race" and "private race tilt" language with
  "local private payoff comparison" and "private-payoff project tilt."
- Replaced "observable races" with "observable project margins" in the measurement
  discussion.
- Replaced "scalar race" with "scalar innovation model" in the introduction to avoid
  implying that the paper's object is a generic race model.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the new wording appears, including "project direction is
  determined," "Infrastructure shocks and project direction," "Private-payoff project
  tilt," "Project direction," and "observable project margins."
- PDF text searches confirm rejected old phrases such as "Private race tilt," "Race
  direction," "observable races," "Private Race Inversion," "Infrastructure shocks and
  race direction," and "scalar race" do not appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- The draft now uses "race" less as a primitive label and reserves the analysis for
  project-value margins, delivered-net-value comparisons, and private-payoff tilts. This
  better matches the paper's current theoretical object and reduces the chance that a
  top-journal reader classifies the contribution as a standard race model.

## 2026-06-27: Round 48 Project Selection and Frontier Premia

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after the main-text addition, because
  this was a substantive theoretical change rather than terminology.
- The reviewer found no fatal algebraic inconsistency and agreed that the change improves
  the paper's economic bite by adding an extensive investment margin: the scarcity ratio
  governs direction conditional on frontier investment, while the level of boundary
  value relative to the outside return governs whether frontier premia are positive.
- The reviewer flagged one important overstatement: in a finite project menu, the
  theorem proves pairwise preference between \(y\) and \(z\), not selection over all
  projects when a third project may dominate. This was absorbed.
- The reviewer also requested explicit assumptions for local marginal selection:
  mutually exclusive marginal projects, maximization over \(\mathcal P\cup\{0\}\), tie
  handling, absence of portfolio complementarities unless a combined project is in the
  menu, and a common outside return within region. These were absorbed.

Changes made:

- Reframed the main result from "project-ranking race inversion" to "project-value
  inversion" and renamed the technology section "Project Technologies."
- Added Proposition \(\ref{p:project-selection}\), "Project selection and frontier
  premia." The proposition defines
  \[
  \Lambda_{aR}(q)=B_H^R(q)d_{aH}/K_a+B_F^R(q)d_{aF}/K_a
  \]
  and the local frontier premium
  \(\Pi_{aR}(q)=\Lambda_{aR}(q)-\mu_R\).
- The new proposition states that selected frontier projects maximize
  \(\Lambda_{aR}(q)\) and are funded only if \(\Lambda_{aR}(q)\ge\mu_R\).
- The pairwise horizon-vs-reliability cutoff remains the same
  \(\Theta_R(q)\) threshold, but the text now explicitly states "pairwise preferred"
  rather than "selected over" when a third project could dominate.
- Added the funding condition
  \[
  B_F^R(q)\{\Theta_R(q)d_{yH}/K_y+d_{yF}/K_y\}\ge \mu_R
  \]
  for a selected horizon-intensive project.
- Added the proof subsection "Project Selection and Frontier Premia."
- Updated the abstract/introduction to describe this result as a local marginal
  decision-theoretic implementation, not a global equilibrium theorem.
- Updated Observable Restrictions to include the plug-in frontier premium
  \[
  \widehat\Pi_{aR}
  =
  \widehat B_H^R\widehat d_{aH}/\widehat K_a
  +\widehat B_F^R\widehat d_{aF}/\widehat K_a
  -\widehat\mu_R,
  \]
  and to state that \(\widehat\mu_R\) must be observed, controlled, or held fixed for
  cross-region premium comparisons.
- Clarified that signed project steps are used only as local directional changes, while
  exact finite-step propositions remain restricted to nonnegative steps.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 90 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 49-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the new results and absorbed AE qualifications appear,
  including "Project selection and frontier premia," "pairwise preferred,"
  "mutually exclusive," "common outside return," "local marginal selection result," and
  "Observable project-value restriction."
- PDF text searches confirm rejected old phrases such as "race-inversion," "race
  inversion," "Observable race-inversion," "Task-Region Race Inversion," and "Race
  Technologies" do not appear.
- Text search confirms the overstatement "selected over z" no longer appears.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- This round materially improves the top-journal pitch: the paper no longer stops at a
  local dot-product ranking. It now gives a disciplined local project-choice margin and
  a frontier-premium margin under explicit maintained controls. The result is still
  deliberately local and decision-theoretic, not a full equilibrium selection theorem;
  that limitation is now stated directly rather than hidden.

## 2026-06-27: Round 49 Identification Design and Invariant Restrictions

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after adding the identification
  proposition, because this was a substantive measurement-design change.
- The reviewer found no fatal algebraic inconsistency and agreed that the proof correctly
  establishes unit invariance of the local value index, pairwise signs, frontier premia,
  and rank restrictions under separate positive affine rescalings of the two axes.
- The reviewer flagged two important narrowing points, both absorbed:
  the ratio/threshold part must condition on \(B_F^R>0\) and a positive project-threshold
  denominator, and the result must not be presented as a nonparametric identification
  theorem.
- The reviewer also asked for explicit wording that \(h\), \(f\), and \(d_a\) are pinned
  by pre-specified task-family exclusions and anchored before examining project-ranking
  outcomes. This was absorbed.

Changes made:

- Added Proposition \(\ref{p:identification}\), "Identification design and invariant
  restrictions," in the Observable Restrictions section.
- The proposition now states four maintained measurement components: fixed task cells
  and repeated success measurements; anchor cells for iso-fragility and iso-horizon
  variation; a maintained common-kernel or local-gradient value model; and project
  experiments that recover before-after steps in the same normalized coordinates.
- Added the key discipline sentence: identification is conditional on pre-specified
  iso-fragility and iso-horizon task families, and \(d_a\) is estimated on the same
  anchored task battery rather than chosen from the engineering label of the project.
- Narrowed the claim from identification in general to a conditional measurement design
  plus invariance result: gradients and project steps must be estimated independently of
  the project-ranking outcome.
- Stated explicitly that invariance holds only for separate positive affine rescalings
  that preserve the horizon-fragility axes, not rotations, shears, nonlinear
  reparameterizations, or relabeling of tasks.
- Added the condition \(B_F^R>0\) and a positive project-threshold denominator for the
  \(\Theta_R\)-to-\(\tau_{yz}\) rescaling statement.
- Added a proof subsection "Identification Design and Invariant Restrictions."
- Added six math-check cases for unit-rescaling invariance: project values in both
  regions, scarcity-ratio transformation, threshold transformation, cutoff-sign
  preservation, and value-matrix determinant preservation.
- Updated the introduction and measurement discussion so Proposition
  \(\ref{p:identification}\) and Proposition \(\ref{p:measurement}\) jointly define the
  empirical discipline closest to the main theorem.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 96 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 51-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the new proposition and absorbed AE qualifications
  appear, including "Identification design and invariant restrictions,"
  "pre-specified iso-fragility and iso-horizon task families," "anchored task battery,"
  "estimated independently of the project-ranking outcome," and "threshold denominator
  is positive."
- PDF text searches confirm overstrong phrases such as "directly recovers,"
  "nonparametric identification," and "arbitrary rotations" do not appear.
- PDF text confirms the non-invariance caveat appears: the proposition does not claim
  invariance to rotations, shears, nonlinear reparameterizations, or relabeling of
  tasks.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- This round strengthens the paper's credibility without changing the core primitive.
  The horizon-forgiveness coordinates are now tied to a pre-specified measurement design
  and an invariance result, so the observable restrictions look less like researcher
  discretion and more like overidentifying discipline under stated controls. The claim is
  deliberately conditional, which is the right posture for a theory paper with empirical
  content.

## 2026-06-27: Round 50 Common-Kernel Benchmark and Local-Gradient Theorem

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after tightening the relation between
  the sequential microfoundation and the common-kernel benchmark.
- The reviewer found no fatal mathematical inconsistency and agreed that the sequential
  reduction correctly delivers \(h=\log n\) and a reduced fragility threshold \(f\), but
  does not derive the product kernel.
- The reviewer flagged one essential remaining ambiguity: because the main theorem was
  stated after product-kernel integral definitions of \(B_H^R\) and \(B_F^R\), a reader
  could still treat the theorem as formally separability-dependent. This was absorbed.
- The reviewer recommended promoting the theorem itself to a local-gradient statement
  using a general differentiable regional value \(U_R(q_H,q_F)\), with the
  common-kernel integrals as a benchmark special case. This was absorbed.

Changes made:

- Replaced the abstract's "baseline common-kernel representation" wording with
  "maintained common-kernel benchmark."
- Rewrote the introduction to state that the product form is not the microfoundation
  itself: the sequential reduction motivates the two coordinates, while the
  common-kernel restriction supplies the closed-form benchmark.
- Added Remark \(\ref{r:kernel}\), "Sequential reduction versus common-kernel
  benchmark." The remark states that the sequential theorem is a threshold/coordinate
  reduction and does not imply a common reliability response curve across tasks.
- Added language at the start of the Sufficient Statistics section: \(B_H\), \(B_F\),
  and \(C\) are closed-form benchmark counterparts of the local gradients used in the
  project-value theorem.
- Promoted the main theorem's primitives to general local gradients. For a task region
  \(R\), the manuscript now defines
  \[
  B_H^R(q)=\partial U_R(q)/\partial q_H,\qquad
  B_F^R(q)=\partial U_R(q)/\partial q_F,
  \]
  with the common-kernel integrals stated only as the \(U_R=W_R\) special case.
- Updated Theorem \(\ref{t:inversion}\) to assume differentiable regional values in the
  two boundary coordinates.
- Rewrote the proof subsection "Task-Region Project-Value Inversion" to begin from the
  Taylor expansion of \(U_R(q+d_a)-U_R(q)\), rather than relying on the product-kernel
  sufficient-statistics theorem.
- Rewrote the nonseparability remark so it now points out that the theorem is already
  a local-gradient theorem; common-kernel separability is used for closed-form
  measurement and sufficient statistics, not for the inversion logic.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 96 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 52-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the new hierarchy appears, including "maintained
  common-kernel benchmark," "not the microfoundation itself," "Sequential reduction
  versus common-kernel benchmark," "differentiable regional value \(U_R\)," and "By
  differentiability of \(U_R\)."
- PDF text searches confirm rejected overstrong phrases such as "product form is a
  baseline," "baseline common-kernel representation," "taking the product form
  literally," and "mechanically implies separable" do not appear.
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- This round strengthens the theory hierarchy. The paper now reads as: the sequential
  model motivates horizon and fragility; the common kernel supplies a transparent
  sufficient-statistics benchmark; the main project-value theorem rests on local
  gradients of regional task value. That is a more defensible Top-5 theory posture than
  deriving too much from the sequential microfoundation.

## 2026-06-27: Round 51 Front-Stage Framing Toward Task-Directed Innovation

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after retitling and reframing the
  front stage away from an AI race hook.
- The reviewer judged the direction correct: the revision makes the paper read more as
  a general theory of task-directed AI innovation, with competition as an application or
  extension rather than the source of the main theorem.
- The reviewer found no essential inconsistency from subordinating the dynamic
  competition material.
- The important absorbed comment was to stabilize the second-axis language: the title
  can speak in terms of forgiveness, but the formal coordinate used in the model is
  fragility \(f\), the inverse of forgiveness.

Changes made:

- Changed the title from "The Task Frontier Race: Horizon, Forgiveness, and AI
  Competition" to "The AI Task Frontier: Horizon, Forgiveness, and Directed
  Innovation."
- Rewrote the literature-positioning sentence so directed and step-by-step innovation
  models organize incentives to invest and preempt rivals, while this paper adds the
  task-side direction of innovation.
- Reframed the roadmap so the appendix is described as dynamic competition extensions,
  not as the main race object.
- Renamed visible appendix and proof headings from race language to
  competitive-investment or dynamic-investment language, including:
  "A Two-Period Competitive-Investment Decomposition,"
  "The Infinite-Horizon Markov Competition Model," and
  "Dynamic investment pressure."
- Replaced visible "agentic-racing" language with "agentic-frontier" language in the
  one-dimensional special case and the conclusion.
- Added natural reminders in the abstract, introduction, technology section, theorem
  entrance, and conclusion that the formal second coordinate is fragility \(f\), the
  inverse of forgiveness, and that \(q_F\) relaxes that fragility/reliability boundary.
- Left internal LaTeX labels such as `eq:race-decomp` unchanged to avoid needless
  reference churn; these labels are not visible framing claims.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 96 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 52-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt. The only matches for "rerun" are package
  `rerunfilecheck` informational lines saying the output file has not changed.
- PDF text extraction confirms the new visible framing appears: "The AI Task Frontier,"
  "Horizon, Forgiveness, and Directed Innovation," "dynamic competition extensions,"
  "agentic-frontier model," "A Two-Period Competitive-Investment Decomposition,"
  "The Infinite-Horizon Markov Competition Model," and "Dynamic investment pressure."
- PDF text extraction confirms the formal-axis clarification appears in the abstract,
  introduction, technology section, and conclusion: fragility \(f\) is the inverse of
  forgiveness, and \(q_F\) is capability against the fragility coordinate.
- PDF text searches confirm rejected old visible framing does not appear, including
  "Task Frontier Race," "Horizon, Forgiveness, and AI Competition," "A Two-Period Race
  Decomposition," "The Infinite-Horizon Markov Race," "Dynamic race pressure,"
  "agentic-racing model," "mutual-racing," "private racing," and "race paper."
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- This round improves the paper's AER/QJE positioning by putting the main contribution
  on the first page: the AI task frontier and project-value inversion are the theory;
  competition, preemption, and race pressure are downstream private-incentive
  extensions. The core primitive, horizon times forgiveness with fragility as the
  formal inverse coordinate, is preserved and now more consistently named.

## 2026-06-27: Round 52 Capability and Task-Design Equivalence

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after adding the task-design
  equivalence result.
- The reviewer judged the direction correct: task design, verification, rollback,
  workflow design, data, and distillation now enter the same effective frontier-step
  language without adding a third task coordinate.
- The reviewer found no fatal mathematical inconsistency under the common-kernel,
  locally constant threshold-shift interpretation.
- Three important comments were absorbed: do not overclaim that arbitrary differentiable
  \(U_R\) makes task-design shifts equivalent to \(q\)-shifts; make clear that
  \(\Delta q_a\) and \(r_{aR}\) are a non-unique accounting decomposition; and require
  cell-level or boundary-weighted aggregation when task-design shifts vary within a
  region.

Changes made:

- Retitled Section \(\ref{sec:technology}\) to "Project Technologies: Capability, Task
  Design, Data, and Distillation."
- Added Proposition \(\ref{p:task-design}\), "Capability and task-design equivalence."
  It states that a raw capability step \(\Delta q_a\) and a task-design threshold
  reduction \(r_{aR}\) enter the common-kernel regional value as
  \(W_R(q+\Delta q_a+r_{aR})\).
- Defined the effective frontier step \(d_{aR}=\Delta q_a+r_{aR}\), while explicitly
  stating that the decomposition is not separately identified by the project-value
  theorem.
- Clarified that for a general differentiable regional value \(U_R\), the local-gradient
  formula applies only if the maintained measurement model represents the post-design
  project as \(U_R(q+d_{aR})\); differentiability alone is not enough.
- Added text explaining that workflows can lower effective horizon, while verification,
  sandboxing, and rollback can lower effective fragility even if the base model is
  unchanged.
- Updated Observable Restrictions so project experiments recover effective frontier
  steps, including task-design threshold reductions, or cell-level threshold shifts used
  to form boundary-weighted regional effective steps.
- Added a proof subsection showing the common-kernel identity:
  \(G_H(q_H+\Delta q_H-(h-r_H))G_F(q_F+\Delta q_F-(f-r_F))\) equals the old integrand
  evaluated at \(q+\Delta q+r\).
- Added three math-check cases: task-design shifts equal effective capability steps;
  local value uses the effective step; and negative task-design shifts lower frontier
  value.
- Updated math-check output labels from old race wording toward frontier and
  competitive-investment wording where relevant.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 54-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt. The only matches for "rerun" are package
  `rerunfilecheck` informational lines saying the output file has not changed.
- PDF text extraction confirms the new visible material appears, including
  "Capability and task-design equivalence," "effective frontier step,"
  "Differentiability of an arbitrary \(U_R\) alone is not enough," "not separately
  identified by the theorem," and "boundary-weighted regional effective step."
- PDF text searches confirm rejected old visible framing does not appear, including
  "Task Frontier Race," "Horizon, Forgiveness, and AI Competition," "baseline separable
  case," "Dynamic race pressure," "A Two-Period Race Decomposition," and
  "agentic-racing model."
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- This round strengthens the paper's treatment of real AI mechanisms without changing
  the primitive. The theory now says that a project can move the frontier by raising
  capability or by redesigning the task environment to lower effective horizon or
  fragility; both enter as the same measured effective displacement. This is the right
  abstraction for workflows, verification, rollback, and tool systems, and it keeps the
  main project-value inversion theorem intact.

## 2026-06-27: Round 53 Abstract Tightening and Front-Stage Contribution

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after rewriting the abstract.
- The reviewer judged the direction correct: the abstract now foregrounds the theory
  primitive, effective frontier steps, project-value inversion, and the scalar rank
  restriction without reading like a referee response.
- The reviewer found no essential inconsistency with the theorem structure.
- Three precision comments were absorbed: the common threshold requires common
  effective steps and costs; the theorem is about local frontier value rather than full
  private payoff; and the rank result requires regional scarcity vectors and project
  directions that each span two dimensions.

Changes made:

- Rewrote the abstract from a dense theorem-by-theorem roadmap into a 296-word
  contribution statement.
- Kept the primitive on the first page: the task frontier is horizon and forgiveness,
  with formal fragility \(f\) as the inverse of forgiveness.
- Added effective frontier steps directly to the abstract: projects can move the
  frontier by raising capability or by lowering effective task thresholds through tools,
  workflows, verification, or rollback.
- Stated the main theorem as a local frontier-value dot product between regional
  boundary scarcity and project direction.
- Added the necessary qualifier that common-threshold reversals require common effective
  steps and costs.
- Tightened the rank statement to match the proposition: scalar quality implies
  rank-at-most-one, while regional scarcity vectors and project directions that each
  span two dimensions generate rank two.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 54-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt. The only matches for "rerun" are package
  `rerunfilecheck` informational lines saying the output file has not changed.
- PDF text extraction confirms the new abstract language appears, including "local
  frontier value," "common effective steps and costs," "rank-at-most-one local value
  matrix," and "regional scarcity vectors and project directions that each span two
  dimensions."
- PDF text searches confirm rejected old visible framing does not appear, including
  "Task Frontier Race," "Horizon, Forgiveness, and AI Competition," "baseline separable
  case," "Dynamic race pressure," "A Two-Period Race Decomposition," and
  "agentic-racing model."
- Synced `paper_task_frontier_race/site/task_frontier_race.{tex,pdf}` to the parent
  `paper_task_frontier_race/task_frontier_race.{tex,pdf}` copies, and byte comparison
  confirms the synced copies match.

Current assessment:

- This round improves the first-page read. The abstract now has a clearer AER/QJE-style
  center of gravity: one primitive, one project-value theorem, one scalar/rank
  restriction, and one economic implication for low-cost followers versus frontier
  premia. The paper still has substantial length and appendix mass, but the front-stage
  contribution is now sharper.

## 2026-06-27: Site Rebuild and Learning Panel

Objective:

- Rebuild the current paper site and make the day's revision learning visible from the
  URL, not only in the workspace log.

Changes made:

- Updated the static site title and front-page framing from the older race wording to
  "The AI Task Frontier" and directed AI innovation.
- Updated the visible verification status from 78 math checks to the current 99 math
  checks.
- Added a "Revision Plan & Today's Learning" panel to the homepage.
- Added a direct `learning.md` link and an embedded expandable learning-log viewer so
  the full June 27 revision history is available on the site.

Current assessment:

- The website now matches the current paper framing better than the previous static
  landing page. It should be treated as a live revision dashboard: PDF first, then the
  concise revision plan, then the full learning log for auditability.

## 2026-06-28: Round 54 Introduction Compression and Identification Guardrails

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after compressing the Introduction.
- The reviewer judged the compression direction correct: the Introduction now foregrounds
  the horizon-forgiveness primitive and project-value inversion without overloading the
  reader with theorem-preview formulas.
- The reviewer recommended three essential refinements, all absorbed: protect the
  iso-fragility meaning of pure horizon comparisons; state that common-threshold
  reversals require measured or controlled region-specific effective steps and costs;
  and make the contribution paragraph sound like a theory contribution rather than
  literature-positioning defense.

Changes made:

- Rewrote the Introduction from a dense theorem roadmap into a shorter first-read
  sequence: puzzle, horizon/forgiveness primitive, common-kernel benchmark, effective
  frontier steps, project-value inversion, scalar/rank restriction, economic
  implications, literature position, and roadmap.
- Removed front-stage duplication of secondary formulas, including the same-cost
  threshold special case, the local premium formula, and the full local value matrix.
  These remain in the formal theorem/proposition sections.
- Added an identification guardrail: a raw increase in essential stages generally moves
  both \(h\) and \(f\); a pure horizon comparison is an iso-fragility comparison.
- Added a restriction guardrail: if effective steps or costs vary by region, the value
  index remains meaningful but the common-threshold reversal is not a restriction unless
  those wedges are measured or controlled.
- Reframed the contribution paragraph to state the theoretical contribution directly:
  the AI task frontier is the state variable for directed innovation, and the result is
  a restriction on which project directions are valuable as that frontier moves.
- Updated the static site learning panel so it reports that introduction compression is
  now the latest completed round rather than the next task.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 51-page PDF.
- The Introduction is now about 1,222 words, down from roughly 2,067 before the
  front-stage compression work.

Current assessment:

- This round materially improves first-read quality. The paper now opens more like a
  top-field theory submission: one primitive, one main inversion restriction, and one
  scalar/rank failure. The remaining high-value editorial issue is not the first-page
  pitch but whether later sections can be pruned or sequenced so the 51-page draft feels
  less encyclopedic.

## 2026-06-28: Round 55 Main-Text Spine and Appendix Demotion

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after moving secondary mechanism
  propositions out of the main text.
- The reviewer judged the structural change directionally correct: the main text now
  reads more like a project-value inversion/rank/measurement theory paper rather than a
  bundle of AI mechanisms.
- Three essential comments were absorbed: the deployment-scale object should be defined
  only once; the main-text private-payoff summary should state its same-cost local
  scope; and the deployment-scale proposition should assume differentiability of
  \(W_R\) at \(q\).

Changes made:

- Moved the formal `Private-payoff project tilt` proposition from the main text to a new
  appendix section, `Private-Payoff and Deployment-Scale Extensions`.
- Moved the formal `Marginal value of deployment scale` proposition to the same appendix
  section.
- Replaced the two main-text propositions with a short extension summary that keeps
  project-value inversion as the central result.
- Removed the main-text `Project direction` corollary environment and retained its
  content as interpretation in the technology proof discussion.
- Eliminated duplicate deployment-scale formalization in the dynamic appendix: the
  dynamic section now references \(\zeta_R(q)\) from Proposition
  \(\ref{p:productive-scale}\) instead of restating the static formula.
- Added the missing differentiability assumption to the deployment-scale proposition.
- Updated the static site learning panel to reflect that the latest round demoted
  secondary extensions to the appendix.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 51-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the main text now describes the private-payoff and
  deployment-scale results as extensions, and the formal propositions appear in Appendix
  E.

Current assessment:

- The main text is now closer to a top-field theory spine: primitives, sufficient
  statistics, project-value inversion, scalar/rank minimality, observable restrictions,
  and saturation. The remaining editorial pressure is still Section
  \(\ref{sec:technology}\), which is long because it houses the technology map,
  task-design equivalence, main theorem, project selection, finite-step inversion,
  rank-minimality, infrastructure, and robustness.

## 2026-06-28: Round 56 Infrastructure as Project-Map Comparative Static

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after moving the formal
  infrastructure corollary out of the main text.
- The reviewer judged the relocation correct: the main text now keeps the contribution
  centered on project-value inversion and rank-minimality while treating infrastructure
  as a clean project-map comparative static rather than a competing primitive.
- Three packaging comments were absorbed: add the holding-fixed qualifier to the
  main-text infrastructure paragraph; rename the appendix section so it includes
  project-map comparative statics; and update the roadmap so the appendix contents are
  accurately described.

Changes made:

- Moved the formal `Infrastructure shocks and project direction` corollary from Section
  \(\ref{sec:technology}\) to Appendix E.
- Replaced the main-text corollary with a short paragraph: GPUs, energy, interconnect,
  inference systems, and financing enter through the project map by changing feasible
  menus, costs, or effective steps.
- Added the necessary holding-fixed qualifier: for a common feasible project pair, the
  threshold comparison holds fixed the technology state and regional scarcity ratios.
- Renamed Appendix E to `Project-Map, Private-Payoff, and Deployment-Scale Extensions`.
- Updated the introduction roadmap so the appendix is described as containing
  project-map infrastructure comparative statics.
- Updated the static site learning panel to reflect the infrastructure demotion.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 52-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.
- PDF text extraction confirms the main-text infrastructure paragraph appears with the
  holding-fixed qualifier, and the formal infrastructure corollary appears in Appendix E.

Current assessment:

- This round preserves the user's requirement that GPU/infrastructure improvements be
  abstracted in the model, but makes clear that they are project-map shifters rather
  than task coordinates. The main-text theory spine is cleaner. A new page-pressure
  issue appeared: the PDF is now 52 pages, so the next structural work should reduce
  appendix or measurement bulk rather than adding new material.

## 2026-06-28: Round 57 Proof-Appendix Packaging and Site Rebuild

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after compacting the proof appendix
  and rebuilding the site.
- The reviewer judged the proof-appendix compaction acceptable: the smaller,
  single-spaced treatment is scoped to the routine proof appendix and ends before the
  bibliography, so it reads like standard appendix packaging rather than page-count
  gaming.
- The reviewer identified one essential packaging issue before stopping: the website
  and learning log had to surface Round 57 rather than stopping at Round 56. This issue
  was absorbed in the site panel and this log entry.

Changes made:

- Renamed `Step-by-Step Mathematical Checks` to `Proofs and Algebraic Details`.
- Wrapped the proof appendix, and only the proof appendix, in `\small` and
  `\singlespacing`; the bibliography remains outside the compacted proof block.
- Reduced the rebuilt PDF from 52 pages to 48 pages without changing the formal
  primitives, propositions, or proof content.
- Updated the homepage learning panel with a short revision plan and today's Round
  54--57 learning: introduction compression, appendix demotion of secondary
  propositions, infrastructure as a project-map comparative static, and proof-appendix
  packaging.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 48-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.

Current assessment:

- This round improves first-round packaging without changing the argument. The paper is
  now much cleaner than the earlier draft: the main text carries the theory spine, while
  secondary mechanism details and routine algebra sit in the appendix. It is a
  conditional pass as a first-round major revision for the theory contribution, with
  remaining risk concentrated in readability, exposition tightness, and whether the
  editor wants still more trimming of the technology-map section.

## 2026-06-28: Round 58 Value-Index Compression Before the Main Theorem

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after compressing the pre-theorem
  technology-map exposition.
- The reviewer judged the edit directionally correct: the section now maps engineering
  objects into \((\mathcal A,K_a,d_a)\), introduces the value index, and reaches the main
  theorem sooner instead of letting AI mechanisms become the contribution.
- The reviewer recommended no substantive text reversal. The only essential items were
  workflow items: sync the parent PDF/source and update the learning/site status.

Changes made:

- Replaced a long pre-theorem chain-rule and mechanism discussion with a short
  value-index bridge:
  \[
  \Lambda_{aR}(q)=
  B_H^R(q)\frac{d_{aH}}{K_a}+B_F^R(q)\frac{d_{aF}}{K_a}.
  \]
- Preserved the capability and task-design equivalence proposition, the main inversion
  theorem, all subsequent propositions, and all proofs.
- Kept the AI mechanism interpretation but made it subordinate: scaling, test-time
  search, tools, verification, workflow design, deployment data, and distillation enter
  only through measured effective steps and costs.
- Moved the main theorem earlier in the source, from roughly line 719 to line 663, and
  reduced the rebuilt PDF from 48 pages to 46 pages.
- Updated the homepage learning panel so today's visible learning includes this
  value-index compression round.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.

Current assessment:

- This is a meaningful top-field readability improvement. The section now reads more
  like a theory paper: project primitives, value index, inversion theorem, then
  implications. The core horizon-forgiveness primitive is unchanged. The first-round
  major revision status is stronger than Round 57: theory contribution, mechanism
  clarity, and packaging all look like conditional passes, with remaining risk mainly in
  further exposition polish rather than formal consistency.

## 2026-06-28: Round 59 Conclusion Synthesis

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after rewriting the Conclusion.
- The reviewer judged the new conclusion directionally correct: it reads like an
  initial-paper synthesis rather than a referee-response patch, and it keeps
  infrastructure, data, and saturation subordinate to the theory.
- No essential text fix was requested. The reviewer recommended keeping the conclusion
  compact and finalizing the iteration after logging and syncing.

Changes made:

- Rewrote the Conclusion around four ideas: AI state as a horizon-forgiveness task
  frontier; boundary scarcity statistics \(B_H\), \(B_F\), and \(C\); project-value
  inversion and the rank restriction; and infrastructure, private incentives,
  saturation, and deployment data as extensions of the same boundary-scarcity logic.
- Removed the prior list-like recap style and replaced it with a shorter final synthesis
  that states why the abstraction disciplines AI races.
- Preserved all primitives, propositions, proofs, and the main theorem. No formal object
  changed.
- Kept the rebuilt PDF at 46 pages after compressing the first draft of the conclusion
  rewrite.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.

Current assessment:

- This round improves the paper's ending without changing the model. The draft now
  closes on the core contribution rather than on a catalog of results. The paper remains
  a conditional first-round major-revision pass on theory and exposition, with residual
  AER/QJE risk concentrated in whether editors view the horizon-forgiveness abstraction
  as sufficiently deep and empirically disciplined.

## 2026-06-28: Round 60 Front-Stage Empirical Discipline

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after strengthening the Abstract and
  Introduction's empirical-discipline language.
- The reviewer judged the edit directionally correct: it directly addresses the risk
  that horizon and forgiveness read like a taxonomy rather than a disciplined theory.
- The reviewer did not request any essential text change. The added abstract sentence is
  slightly denser, but it earns its space because it tells the reader how the primitive
  is anchored.

Changes made:

- Added to the Abstract that the coordinates are disciplined by task families that
  separately vary depth and failure tolerance and by project steps measured in the same
  units.
- Replaced the Introduction's generic statement that the model imposes project-ranking
  restrictions with a sharper front-stage statement: the empirical object is a local
  project-value matrix, and measured boundary values plus measured project directions
  must organize sign and rank patterns across task regions.
- Preserved the theory-first hierarchy. No calibration claim, theorem statement,
  proposition, proof, or primitive changed.
- Updated the homepage learning panel so today's visible log includes this front-stage
  empirical-discipline round.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.

Current assessment:

- This round improves the first read by making clear that horizon and forgiveness are
  not labels chosen after the fact. They are anchored by task families and discipline a
  model-implied value matrix. The paper remains a conditional AER/QJE first-round
  major-revision pass; residual risk is now mostly whether the abstraction is judged
  important enough, not whether the paper fails to say how it is disciplined.

## 2026-06-28: Round 61 Sequential Horizon-by-Forgiveness Bridge

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after adding a short explanatory
  bridge inside the sequential microfoundation.
- The reviewer judged the edit directionally correct: it strengthens the primitive by
  showing horizon and forgiveness inside the exact sequential success probability rather
  than as a post-hoc taxonomy.
- The reviewer found low overclaim risk because the next paragraph and later remark
  still state that the common-kernel specification is a benchmark and that the
  sequential result is an isoquant reduction. One optional wording polish was absorbed
  by limiting the interaction claim to the sequential physical-success problem.

Changes made:

- Added a short paragraph after the exact sequential success probability explaining that
  the equation displays a horizon gate multiplied by a forgiveness-adjusted reliability
  gate.
- Clarified that retries, observability, and recovery convert local action success into
  stage success, which then compounds over the horizon.
- Preserved the theorem, proof, common-kernel caveat, and all formal primitives.
- Updated the homepage learning panel so today's visible log includes this
  microfoundation bridge.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.

Current assessment:

- This round improves abstraction depth without changing the model. The primitive now
  has a clearer production interpretation before the paper moves to the common-kernel
  sufficient-statistics benchmark. The paper remains a conditional AER/QJE
  first-round major-revision pass, with improved defense against the concern that the
  two coordinates are merely descriptive labels.

## 2026-06-28: Round 62 Abstract Compression and First-Page Packaging

Review status:

- Stopped the autonomous improvement loop after this packaging pass, per the user's
  instruction, and treated the round as a rebuild/status iteration rather than the
  start of another expansion cycle.
- The main judgment is positive: the abstract is now closer to a top-field front door.
  It still states the puzzle, horizon-forgiveness primitive, sequential
  microfoundation, project-value theorem, threshold reversal, scalar/rank restrictions,
  empirical discipline, and saturation implication, but it no longer consumes the
  entire first page.
- Remaining AER/QJE risk is not mathematical correctness. It is whether the editor and
  referees view the task-frontier abstraction as important enough and sufficiently
  disciplined by observable task families and project steps.

Changes made:

- Compressed the Abstract while preserving the paper's substantive spine.
- Confirmed that the rebuilt first page now reaches the Introduction rather than ending
  after the front matter.
- Updated the homepage's small revision plan so it tells readers that the next pass
  should be selective polishing, not further expansion.
- Updated the homepage learning panel so today's visible learning runs through Round
  62.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.

Current assessment:

- The paper is now a credible conditional pass for an AER/QJE first-round major
  revision, conditional on readers buying the importance of the horizon-forgiveness
  state variable. It does not read like a clear desk-reject at this point: the formal
  theorem, scalar-model restriction, rank test, and empirical-discipline language are
  all visible early enough. The weak point is still external conviction rather than
  internal consistency.

## 2026-06-28: Round 63 Constructed Project-Value Matrix Framing

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after tightening the Introduction's
  empirical-discipline paragraph.
- The reviewer judged the direction a pass because it gives top-field readers a clearer
  contract: the theory disciplines a region-by-project local value matrix through sign
  and rank restrictions.
- The reviewer identified one must-fix: do not call the matrix itself directly
  observable. Its entries are constructed from independently measured boundary values,
  effective project steps, and costs. This wording fix was absorbed.

Changes made:

- Rewrote the Introduction's operational-content paragraph so horizon and fragility are
  task-side boundaries, not ex post labels.
- Defined the empirical object as a constructed local project-value matrix: rows are
  task regions, columns are projects, and entries are local values formed from
  independently measured boundary values, effective frontier steps, and costs.
- Stated that the model restricts the signs and rank of this matrix under those
  maintained measurements before observing the project-ranking outcome.
- Preserved the primitives, theorem statements, proof structure, abstract, and
  conclusion.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.

Current assessment:

- This round strengthens the first read without adding a new mechanism. The paper's
  theory contribution is now framed less as a flexible vocabulary and more as a
  constructed-value restriction with sign and rank content. It remains a conditional
  AER/QJE first-round major-revision pass; the main residual risk is still whether the
  horizon-forgiveness primitive is judged sufficiently important, not whether the model
  is internally inconsistent.

## 2026-06-28: Round 64 Contribution Positioning Against Existing Theory

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after rewriting the Introduction's
  contribution/literature paragraph.
- The reviewer judged the round a pass: the paragraph now separates the paper from
  task-substitution models, directed and step-by-step innovation, and general-purpose
  technology diffusion.
- No must-fix was requested. A minor optional wording clarification was absorbed:
  `The payoff is a restriction' became `The payoff of the framework is a restriction.'

Changes made:

- Rewrote the contribution paragraph so the paper's object is the remaining AI task
  frontier, conditional on AI systems already serving some tasks.
- Stated the directed-innovation contribution as adding a task-side direction to
  investment, not merely another incentive model.
- Made the payoff explicit: the framework delivers project-value reversal and
  rank-at-most-one scalar restrictions, not a broad vocabulary for classifying AI
  applications.
- Kept all primitives, theorem statements, proofs, and mechanisms unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.

Current assessment:

- This round improves top-field positioning without adding defensive content. The paper
  now more clearly says why it is not a task-substitution paper, not only a directed
  innovation paper, and not a diffusion-level story. It remains a conditional AER/QJE
  first-round major-revision pass, with residual risk concentrated in importance and
  reader buy-in for the horizon-forgiveness state variable.

## 2026-06-28: Round 65 Main-Theorem Comparison Object Cleanup

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after tightening the main theorem's
  comparison language.
- The reviewer judged the round a pass: defining \(y\succ_R z\) as higher task-side
  frontier value per unit cost makes the theorem's object explicit and removes an
  informal caveat.
- No must-fix was requested. A minor optional symmetry edit was absorbed so both project
  directions use `task-side frontier value' language inside the theorem.

Changes made:

- Replaced the theorem's informal `Ignoring strategic rent shifting' phrasing with a
  formal comparison object: higher task-side frontier value per unit cost.
- Updated the definition of \(y\succ_R z\) so it explicitly concerns the task-side
  frontier-value relation while holding the project menu and costs fixed.
- Preserved the private-rent and outside-return margins in their later propositions and
  sections. No primitive, theorem inequality, proof, or mechanism changed.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.

Current assessment:

- This round improves theorem admissibility without expanding the paper. The main
  result now states its comparison object in theorem language rather than in an
  informal exclusion phrase. The paper remains a conditional AER/QJE first-round
  major-revision pass, with residual risk in importance and empirical buy-in rather
  than internal theorem consistency.

## 2026-06-28: Round 66 Task-Side Per-Dollar Wording Alignment

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after aligning the Introduction's
  main-result summary and the appendix proof with the theorem's task-side frontier-value
  comparison.
- The reviewer judged the direction a pass but identified one must-fix: the Introduction
  summary had to say `per dollar' or `per unit cost' because the displayed threshold is
  cost-normalized.
- The must-fix was absorbed. The Introduction now states that \(y\) has higher
  task-side frontier value per dollar in region \(R\) exactly when the scarcity-ratio
  cutoff holds.

Changes made:

- Updated the Introduction's main-result summary from a generic frontier-value
  comparison to a task-side frontier-value-per-dollar comparison.
- Updated the appendix proof of the inversion theorem so the first-order object and
  cost-normalized comparison use the same task-side frontier-value language as the
  theorem.
- Preserved all formulas, primitives, theorem inequalities, and proof logic.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site` and produced a 46-page PDF.
- The final LaTeX log contains no `LaTeX Warning`, no `Overfull`, no `Underfull`, no
  `undefined`, and no rerun prompt.

Current assessment:

- This round improves internal consistency between the theorem, first-read summary, and
  appendix proof. It does not change the model. The paper remains a conditional AER/QJE
  first-round major-revision pass; the remaining risk is top-journal importance and
  empirical/testable bite, not inconsistency in the main theorem's comparison object.

## 2026-06-28: Round 67 Front-Matter Task-Side Value Alignment

Review status:

- Treated this as a rebuild/status iteration, not the start of another substantive
  expansion cycle.
- The edit is narrow: the abstract, Introduction definition, and technology bridge now
  use the same task-side frontier-value-per-dollar object as the main theorem.
- The remaining reviewer question is packaging, not math: the abstract must stay
  precise without becoming too dense.

Changes made:

- Replaced loose front-matter language about local frontier value with task-side
  frontier value per dollar where the theorem's cost-normalized object is being
  summarized.
- Replaced the informal abstract phrase that one project `beats' another with the
  explicit comparison: one project has higher task-side frontier value per dollar than
  the other.
- Preserved all primitives, formulas, theorem inequalities, proofs, mechanisms, and
  page count.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail before the final site rebuild.
- The rebuilt PDF remains 46 pages, and page 1 still reaches the Introduction.
- The final rebuild and URL checks are recorded on the project site.

Current assessment:

- This round improves precision in the paper's front door. It reduces the risk that an
  AER/QJE reader sees the theorem as switching objects between abstract, Introduction,
  and formal statement. The paper remains a conditional first-round major-revision
  pass; the residual risk is importance and external buy-in, not internal consistency.

## 2026-06-28: Round 68 Local Restriction and Overidentifying Content

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after adding a short first-read
  paragraph on the scope of the main restriction.
- The reviewer judged the round a pass for conditional first-round major-revision
  readiness: the edit clarifies that the theorem ranks task-boundary movement after
  project steps, costs, and payoff wedges are fixed or measured.
- No must-fix was requested. One optional rhetorical concern was absorbed by replacing
  mildly defensive phrasing with a neutral statement about overidentifying content.

Changes made:

- Added a compact Introduction paragraph stating that the restriction is local rather
  than a complete pricing, distribution, or rent-shifting model.
- Clarified that, with independently measured task families and project steps, the
  regional scarcity ratio \(B_H^R/B_F^R\) must organize pairwise project-value signs.
- Preserved all primitives, formulas, theorem inequalities, mechanisms, and proofs.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages, page 1 still reaches the Introduction, and the LaTeX log
  contains no warnings, overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves the paper as a standalone theory draft. The first read now more
  clearly tells an AER/QJE reader what is restricted, what is conditioned on, and why
  the horizon-forgiveness primitive has testable content. The paper remains a
  conditional first-round major-revision pass; the residual risk is still importance and
  external buy-in, not internal coherence.

## 2026-06-28: Round 69 Main-Theorem Tie and Same-Cost Precision

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after a narrow formal polish to the
  main inversion theorem and proof.
- The reviewer judged the round a pass: the theorem now cleanly separates the general
  cost-normalized comparison from the same-cost specialization, and equality/tie cases
  are explicit.
- No must-fix was requested.

Changes made:

- Replaced `same-cost unit case' with `same-cost case' in the main theorem and proof,
  since the displayed ratio does not require unit costs, only common costs across the
  two projects.
- Added the explicit equality statement: at the cutoff the two projects have the same
  task-side frontier value per unit cost.
- Aligned the proof language with the theorem by stating both the horizon-intensive
  direction for \(y\) and the reliability-intensive direction for \(z\) in
  cost-normalized terms.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages, page 1 still reaches the Introduction, and the LaTeX log
  contains no warnings, overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves theorem precision without changing the model. It removes a small
  strict-inequality ambiguity and makes the theorem/proof pair read more like final
  submission math. The paper remains a conditional first-round major-revision pass,
  with residual risk concentrated in importance and external buy-in.

## 2026-06-28: Round 70 Project-Selection Terminology Alignment

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after aligning the project-selection
  proposition and proof with the main theorem's terminology.
- The reviewer judged the round a pass: the change avoids ambiguity between task-side
  project value, private return, realized ROI, and the outside-option net return.
- No must-fix was requested.

Changes made:

- Replaced `local frontier return per dollar' in the project-selection proposition with
  `task-side frontier value per dollar.'
- Replaced the corresponding proof language about `local frontier returns per dollar'
  and `higher local frontier return' with task-side frontier-value wording.
- Left generic uses of `local frontier value' elsewhere untouched where they do not
  denote the per-dollar project-selection object.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages, page 1 still reaches the Introduction, and the LaTeX log
  contains no warnings, overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves consistency around the paper's central comparison object without
  changing substance. The project-selection extension now reads as a clean margin around
  the theorem rather than a switch to a different return concept. The paper remains a
  conditional first-round major-revision pass.

## 2026-06-28: Round 71 Observable-Restriction Object Alignment

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after aligning the Observable
  Restrictions section and conclusion with the theorem's task-side frontier-value
  object.
- The reviewer judged the round a pass: the observable object is now clearly a
  model-implied task-side value ranking, not raw adoption or investment choice.
- No must-fix was requested. One optional wording tightening was absorbed by changing
  `relative task-side value per dollar' to `relative task-side frontier value per
  dollar.'

Changes made:

- Updated the Observable Restrictions opening so the restriction is on task-side
  frontier-value rankings and project-selection margins.
- Updated the measurement text so the value index and empirical analogue describe
  task-side frontier value rather than generic local value.
- Updated the conclusion so the main restriction reverses task-side frontier-value
  rankings across regions.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages, page 1 still reaches the Introduction, and the LaTeX log
  contains no warnings, overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves cross-section coherence between theorem, measurement, and
  conclusion. The paper more consistently separates model-implied task-side frontier
  values from adoption counts, project selection, and private-return margins. It remains
  a conditional first-round major-revision pass.

## 2026-06-28: Round 72 Measurement-Table Task-Side Alignment

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after aligning the Observable
  Restrictions table and surrounding text with the theorem's task-side value object.
- The reviewer judged the round a pass: the table now disciplines the theory against
  measured task coordinates, project steps, and costs, rather than sounding like a raw
  adoption or engineering-label prediction.
- No must-fix was requested. One optional readability edit was absorbed by replacing
  `task-side frontier-value signs' with `pairwise signs of task-side frontier value.'

Changes made:

- Updated the Observable Restrictions table header to `Model-implied task-side margin.'
- Replaced row-level `higher local value' language with `higher task-side frontier
  value' in the long-forgiving and short-fragile rows.
- Updated the post-table summary so measured horizon, fragility, project steps, and
  costs organize pairwise signs of task-side frontier value.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages, page 1 still reaches the Introduction, and the LaTeX log
  contains no warnings, overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves the paper's most visible empirical-discipline device. The table
  now matches the theorem's object and is less vulnerable to being read as a loose
  adoption prediction. The paper remains a conditional first-round major-revision pass.

## 2026-06-28: Round 73 Rank-Minimality Object Alignment

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after aligning the rank-minimality
  explanation with the theorem's task-side frontier-value-per-dollar object.
- The reviewer judged the round a modest but clear pass: the edit reduces ambiguity
  between task-side frontier value, private returns, adoption wedges, and realized ROI.
- No must-fix was requested. The reviewer noted that remaining shorthand uses of
  `local value matrix' can be harmonized later, but should not be mechanically forced
  before first-round submission.

Changes made:

- Defined \(M\) in the rank-minimality proposition as the task-side local
  project-value matrix.
- Replaced residual explanatory language about projects having `higher local frontier
  value' with `higher task-side frontier value per dollar' in the post-theorem
  interpretation.
- Clarified that the rank object is the task-side local project-value matrix, while
  leaving formulas, primitives, theorem statements, and mechanisms unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. The LaTeX log contains no warnings,
  overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves consistency around the paper's central comparison object without
  changing the theory. The paper remains a conditional AER/QJE first-round
  major-revision pass; residual risk is still importance and external buy-in for the
  horizon-forgiveness primitive, not internal theorem coherence.

## 2026-06-28: Round 74 Project-Value Matrix Harmonization

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after harmonizing the first-read,
  measurement, conclusion, and proof language around the rank object.
- The reviewer judged the round a modest net improvement: the matrix now reads as a
  project-value object tied to the theorem, not as a generic value matrix or adoption
  proxy.
- No must-fix was requested. One low-cost reader-load suggestion was absorbed by
  clarifying at the first definition that matrix entries are task-side frontier values
  per dollar, not realized private returns.

Changes made:

- Replaced visible `local value matrix' shorthand with `local project-value matrix' or
  `task-side local project-value matrix' where the text states the rank restriction.
- Renamed the measurement section's `task-side value index' to the task-side
  frontier-value index.
- Clarified that the constructed matrix entries are task-side frontier values per
  dollar formed from measured boundary values, effective project steps, and costs.
- Left all formulas, primitives, theorem statements, proof logic, and mechanism set
  unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. The LaTeX log contains no warnings,
  overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves first-read precision around the rank restriction while preserving
  the paper as a theory contribution. The paper remains a conditional AER/QJE
  first-round major-revision pass.

## 2026-06-28: Round 75 Horizon-Forgiveness Front-Door Clarification

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after adding a front-door
  clarification of the horizon-forgiveness primitive in the Abstract and early
  Introduction.
- The reviewer judged the change a net improvement: it helps readers see that the
  contribution is a task-side theory rather than another scalar model-quality story.
- One must-fix was requested and absorbed: the Abstract had to separate the sequential
  microfoundation from the common-kernel benchmark so the primitive would not be
  confused with the product-form measurement benchmark.

Changes made:

- Revised the Abstract to state that the sequential microfoundation motivates the
  horizon-forgiveness primitive: serial depth compounds residual stage-level failure
  risk after retry, observability, rollback, and failure tolerance.
- Separated that primitive from the next sentence, which now states that the
  common-kernel benchmark is used to compute boundary values for horizon and fragility
  relaxation and their complementarity.
- Added a short early-Introduction clarification that the economically relevant
  interaction is horizon by forgiveness: serial depth determines how many local risks
  are compounded, while forgiveness determines how much local risk remains.
- Left all formulas, theorem statements, mechanisms, measurement restrictions, and
  proof logic unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. The LaTeX log contains no warnings,
  overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves the paper's first-page explanation of the primitive while
  preserving the theory-first structure. The paper remains a conditional AER/QJE
  first-round major-revision pass.

## 2026-06-28: Round 76 Task-Side Ranking Restriction Alignment

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after aligning residual
  operational-content, figure-caption, and measurement language with the theorem's
  task-side frontier-value ranking object.
- The reviewer judged the round a modest net improvement: the observable object now
  reads consistently as a model-implied task-side frontier-value ranking, not a generic
  value, adoption, or choice ranking.
- No must-fix was requested. One optional precision edit was absorbed in the theorem-map
  caption by clarifying that \(\Theta_R\) determines the project ranking relative to
  the relevant project threshold.

Changes made:

- Replaced residual `value ranking' language in the operational-content and
  measurement sections with `task-side frontier-value rankings.'
- Replaced `pairwise local value-ranking restrictions' with pairwise task-side
  frontier-value sign restrictions through the regional boundary ratio.
- Clarified that observed adoption or choice frequencies require a maintained mapping
  from task-side frontier-value rankings to choices.
- Updated the theorem-map caption so the scarcity ratio is interpreted relative to the
  relevant project threshold when determining the higher task-side frontier value per
  dollar.
- Left formulas, theorem statements, mechanisms, and proof logic unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. The LaTeX log contains no warnings,
  overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves cross-section consistency between identification, measurement,
  figure intuition, and the main theorem. The paper remains a conditional AER/QJE
  first-round major-revision pass.

## 2026-06-28: Round 77 Scalar-Benchmark Generosity Clarification

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after clarifying that the scalar
  benchmark is not a weak straw-man comparison.
- The reviewer judged the round an improvement for first-read credibility: the scalar
  benchmark now explicitly allows region-specific scalar marginal values while holding
  scalar project increments and costs common.
- No must-fix was requested. One optional precision edit was absorbed by replacing
  `local demand slopes' with `regional scalar marginal values' to match the formal
  object more closely.

Changes made:

- Added an Introduction clarification that the scalar comparison is generous to the
  one-dimensional model: regions may have different regional scalar marginal values,
  but the scalar project increment and cost are common.
- Added the same point to the measurement rank discussion: the scalar model imposes a
  rank-at-most-one local project-value matrix even when regional scalar boundary slopes
  differ freely.
- Left all formulas, theorem statements, mechanisms, measurement objects, and proof
  logic unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. The LaTeX log contains no warnings,
  overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round strengthens the scalar-minimality claim without changing the model. The
  paper remains a conditional AER/QJE first-round major-revision pass.

## 2026-06-28: Round 78 Frontier-Value Index Notation Alignment

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after aligning the Introduction's
  value-index notation with the formal sections.
- The reviewer judged the change improves first-read clarity: using
  \(\Lambda_{aR}\) in the Introduction aligns the headline formula with theorem,
  project-selection, and measurement sections and avoids making \(V\) do too many jobs.
- No must-fix was requested. The reviewer recommended keeping `task-side
  frontier-value index' despite slight heaviness because it prevents confusion with
  delivered task value and continuation value.

Changes made:

- Replaced the Introduction's \(V_{aR}\) notation for task-side frontier value per
  dollar with \(\Lambda_{aR}\).
- Replaced generic `value index' language in the Introduction and task-design
  proposition with `task-side frontier-value index.'
- Preserved \(V_i(R)\) for delivered task value and \(V_i\) for continuation values in
  the imitation/dynamic sections.
- Left formulas' substance, theorem statements, mechanisms, and proof logic unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. The LaTeX log contains no warnings,
  overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves notation discipline around the paper's central comparison
  object. The paper remains a conditional AER/QJE first-round major-revision pass.

## 2026-06-28: Round 79 Task-Side Forgiveness Clarification

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after adding a first-read
  clarification that forgiveness/fragility is a task-side property, not model quality.
- The reviewer judged the change a net improvement: it addresses a central possible
  confusion between the task-side coordinate \(f\) and the system-side reliability
  capability \(q_F\).
- No must-fix was requested. One optional precision edit was absorbed by replacing
  language that made reliability valuable `precisely when' tasks have little forgiveness
  with language about the marginal value of \(q_F\) being highest near low-forgiveness
  tasks.

Changes made:

- Added a short Introduction sentence distinguishing task-side forgiveness from
  system-side reliability capability.
- Revised the sentence to say that system reliability, later denoted \(q_F\), is the
  capability whose marginal value is highest when tasks have little forgiveness.
- Left all formulas, theorem statements, mechanisms, measurement restrictions, and
  proof logic unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. The LaTeX log contains no warnings,
  overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves the first-read separation between task environment and model
  capability while preserving the horizon-forgiveness primitive. The paper remains a
  conditional AER/QJE first-round major-revision pass.

## 2026-06-28: Round 80 Abstract Task-Side Primitive Alignment

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after bringing the Round 79
  task-side forgiveness clarification into the Abstract.
- The reviewer judged the abstract change a pass: naming the primitive as a task-side
  two-dimensional space helps readers see that the paper is not a generic AI-quality
  model.
- No must-fix was requested. One optional wording edit was absorbed by replacing the
  slightly awkward `left by the task environment's retry...' phrase with a cleaner
  sentence about residual stage-level failure risk after retry, observability, rollback,
  and failure tolerance are accounted for.

Changes made:

- Revised the Abstract to describe the primitive as a two-dimensional task-side space of
  horizon and forgiveness, with fragility as inverse forgiveness.
- Revised the sequential-microfoundation sentence so the residual risk is defined after
  retry, observability, rollback, and failure tolerance are accounted for.
- Left all formulas, theorem statements, mechanisms, measurement restrictions, and
  proof logic unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. Page 1 still reaches the Introduction. The LaTeX log
  contains no warnings, overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves abstract-level positioning of the paper's primitive without
  adding mechanisms or making the abstract read defensively. The paper remains a
  conditional AER/QJE first-round major-revision pass.

## 2026-06-28: Round 81 Common-Kernel Terminology Harmonization

Review status:

- No independent reviewer was spawned because this was a narrow terminology
  harmonization, not a substantive change to the model, theorem, measurement design, or
  paper framing.
- The edit removes a possible first-read confusion in the measurement section: one
  sentence referred to the established common-kernel benchmark as the `product-kernel'
  form.

Changes made:

- Replaced the lone `product-kernel form' phrase in the Observable Restrictions section
  with `common-kernel benchmark.'
- Broke the surrounding long sentence so the measurement-benchmark caveat reads more
  cleanly.
- Left all formulas, theorem statements, mechanisms, measurement restrictions, and
  proof logic unchanged.

Verification:

- `rg -n "product-kernel" task_frontier_race.tex` has no remaining matches.
- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. The LaTeX log contains no warnings,
  overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round removes a small but unnecessary terminology inconsistency around the
  measurement benchmark. The paper remains a conditional AER/QJE first-round
  major-revision pass.

## 2026-06-28: Round 82 Horizon-Only Special-Case Terminology

Review status:

- No independent reviewer was spawned because this was a terminology clean-up, not a
  substantive change to the model, theorem, measurement design, or paper framing.
- The edit removes a possible first-read distraction: `one-dimensional agentic frontier'
  could read like an extra concept, while the intended object is simply the
  horizon-only one-dimensional special case.

Changes made:

- Replaced `one-dimensional agentic frontier' in the roadmap with
  `one-dimensional horizon frontier.'
- Replaced the classification-section and conclusion references to the
  `one-dimensional agentic-frontier model' with `one-dimensional horizon-frontier
  model.'
- Left all formulas, theorem statements, mechanisms, measurement restrictions, and
  proof logic unchanged.

Verification:

- `rg -n "agentic" task_frontier_race.tex` has no remaining matches.
- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. The LaTeX log contains no warnings,
  overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round removes a small buzzword-like term and makes the one-dimensional special
  case read as a reduction of the main horizon-forgiveness primitive. The paper remains
  a conditional AER/QJE first-round major-revision pass.

## 2026-06-28: Round 83 Main-Text Race-Language Cleanup

Review status:

- No independent reviewer was spawned because this was a narrow main-text terminology
  cleanup, not a substantive change to the model, theorem, measurement design, or paper
  framing.
- The edit removes a residual old-framework phrase in the conclusion: `race reversals'
  could distract from the paper's actual theorem object, which is task-side
  project-value inversion.

Changes made:

- Replaced `scalar quality rankings miss some race reversals' in the conclusion with
  `scalar quality rankings miss some task-side project-value reversals.'
- Left internal LaTeX labels unchanged because they are not reader-facing.
- Left all formulas, theorem statements, mechanisms, measurement restrictions, and
  proof logic unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. The LaTeX log contains no warnings,
  overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round keeps the conclusion aligned with the main theorem's object rather than
  older race framing. The paper remains a conditional AER/QJE first-round
  major-revision pass.

## 2026-06-28: Round 84 First-Read Reliability Phrase Cleanup

Review status:

- No independent reviewer was spawned because this was a narrow first-read wording
  cleanup, not a substantive change to the model, theorem, measurement design, or paper
  framing.
- The edit removes an awkward early-Introduction phrase that could slow down readers:
  `fragile tasks that require ... low irreversible error.'

Changes made:

- Replaced `fragile tasks that require discipline, monitoring, and low irreversible
  error' with `fragile tasks that demand discipline, monitoring, and low
  irreversible-error rates.'
- Left the Observable Restrictions table's `low tolerance for irreversible error'
  wording unchanged because it refers to the task environment, not capability.
- Left all formulas, theorem statements, mechanisms, measurement restrictions, and
  proof logic unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. The LaTeX log contains no warnings,
  overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves first-page prose around reliability capability without changing
  the horizon-forgiveness primitive. The paper remains a conditional AER/QJE
  first-round major-revision pass.

## 2026-06-28: Round 85 Abstract Boundary-Value Parallelism Cleanup

Review status:

- No independent reviewer was spawned because this was a narrow abstract wording cleanup,
  not a substantive change to the model, theorem, measurement design, or paper framing.
- The edit removes a small parallelism issue in the Abstract: `boundary values for
  horizon and fragility relaxation' could be read as making `relaxation' apply to both
  coordinates.

Changes made:

- Replaced `boundary values for horizon and fragility relaxation and their
  complementarity' with `boundary values for horizon movement, fragility relaxation, and
  their complementarity.'
- Left all formulas, theorem statements, mechanisms, measurement restrictions, and
  proof logic unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. The LaTeX log contains no warnings,
  overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round makes the Abstract's boundary-value sentence more precise while preserving
  the theory-first framing. The paper remains a conditional AER/QJE first-round
  major-revision pass.

## 2026-06-28: Round 86 Finite-Step Task-Side Value Alignment

Review status:

- No independent reviewer was spawned because this was a narrow terminology alignment,
  not a substantive change to the model, theorem, measurement design, or paper framing.
- The edit aligns the finite-step inversion proposition with the paper's central
  comparison object: task-side frontier value.

Changes made:

- Replaced `exact regional frontier values per unit cost' with `exact regional
  task-side frontier values per unit cost.'
- Replaced `higher exact finite-step frontier value per unit cost' with `higher exact
  finite-step task-side frontier value per unit cost' in both the proposition and proof.
- Left all formulas, theorem statements, mechanisms, measurement restrictions, and
  proof logic unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 47 pages. The LaTeX log contains no warnings,
  overfull/underfull boxes, undefined references, or rerun prompt.

Current assessment:

- This round improves terminology consistency in the finite-step extension while
  preserving the local theorem and proof logic. The paper remains a conditional AER/QJE
  first-round major-revision pass.

## 2026-06-28: Round 87 Operational Rank and Rejecting-Design Discipline

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after deciding that the next useful
  change should be substantive rather than another terminology pass.
- The reviewer judged the paper closer to an independent theory paper, but not yet a
  clean AER/QJE pass. The top comments were that the observable/rank restrictions still
  risked looking constructed, that the horizon-forgiveness primitive needed a sharper
  statement of admissible independent task variation, and that defensive caveats should
  be consolidated rather than expanded.
- Absorbed the first two comments directly. Did not attempt a broad prose compression
  in this round because the high-return change was to make the rejecting design and
  rank restriction more operational without changing the theory spine.

Changes made:

- Added an "Admissible task families" paragraph in Task Primitives. It defines
  horizon-admissible families as variation in \(h=\log n\) at fixed reduced fragility
  \(f\), fragility-admissible families as variation in \(f\) at fixed \(h\), and states
  that domains without compensation identify diagonal movements rather than pure
  horizon shifts.
- Strengthened the Introduction's rank claim: scalar frontiers require every
  two-by-two minor of the local project-value matrix to vanish, while the two-boundary
  model factors each such minor into a regional-scarcity determinant times a
  project-direction determinant.
- Added the same two-by-two minor identity to Proposition
  \(\ref{p:rank-minimality}\) and to its appendix proof.
- Added a "Minimum rejecting design" paragraph in Observable Restrictions. The design
  pre-specifies anchor task families, estimates project steps and costs on separate
  calibration cells, tests held-out regions/projects away from equality, and rejects
  when held-out signs or minors are not organized by the measured scarcity and
  project-direction determinants.
- Updated the measurement discussion so the rank comparison is not just a fitted
  accounting object: held-out local project-value proxies or fixed choice maps supply
  the test object.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 49 pages after adding the operational design and determinant
  material.

Current assessment:

- This is a substantive improvement to the paper's top-journal credibility. It directly
  addresses the remaining AE risk that the rank restriction could be dismissed as
  relabeling or local accounting. The paper remains theory-first, and the primitive is
  more protected because pure and diagonal task movements are now separated inside the
  model rather than handled as a caveat.

## 2026-06-28: Round 88 Scope Consolidation and Presentation Cleanup

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after the presentation pass.
- The reviewer passed the round and found no critical issue before finalizing. The
  reviewer specifically judged that the new scope language states the common-project
  design as a maintained restriction rather than a defensive caveat, and that the
  Observable Restrictions opening now foregrounds task-side frontier-value rankings,
  pre-measured steps/costs, and choice-map requirements cleanly.

Changes made:

- Added a concise "Scope of the restriction" paragraph before the main theorem. It
  states the common-project design affirmatively: project steps are measured before the
  regional ranking exercise, costs are observed, payoff and choice wedges are fixed or
  measured, and boundary values are positive.
- Rewrote the Observable Restrictions opening so it reads as a positive measurement
  design rather than a list of caveats. Raw adoption counts now enter only after a
  choice map and comparable opportunity sets are added.
- Replaced several defensive phrases with design-language equivalents: region-specific
  project steps, costs, and payoff wedges enter as measured inputs; the rejecting design
  requires directions, costs, regions, and choice maps to be fixed before held-out
  rankings are observed.
- Preserved the horizon-forgiveness primitive, the task-side frontier-value object, the
  common-threshold sign restriction, and the two-by-two minor/rank restriction.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 49 pages after the presentation cleanup.

Current assessment:

- This round improves the paper's first-draft feel. The scope and measurement
  conditions now read as part of the model's design rather than as a running referee
  response. The paper is still theory-first and the main contribution remains the
  horizon-by-forgiveness AI task frontier with sign and rank restrictions.

## 2026-06-28: Round 89 Appendix Packaging and Main-Spine Protection

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after the appendix-packaging pass.
- The reviewer passed the round and found no critical issue. The reviewer judged that
  the revised roadmap and appendix roadmap make the dynamic, competition,
  infrastructure, and deployment results read as optional applications of the same
  boundary objects rather than as competing mechanisms.

Changes made:

- Rewrote the Introduction roadmap's appendix sentence. It now says the appendix
  collects optional competition, infrastructure, and deployment-scale extensions that
  use the same boundary objects, and then gives proofs.
- Added a short appendix roadmap immediately after `\appendix`. It states that
  Sections A--E show how the same horizon and fragility boundary objects enter
  extensions, that those extensions do not add task coordinates or change the main sign
  and rank restrictions, and that Section F contains proofs and algebraic details.
- Left all theorem statements, equations, proofs, and the main text theory spine
  unchanged.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 50 pages after adding the appendix roadmap.
- The LaTeX log contains no warnings, overfull/underfull boxes, undefined references,
  or rerun prompt.

Current assessment:

- This round reduces mechanism-sprawl risk. The appendix now reads as optional
  applications and proof support for the same horizon-forgiveness boundary theory,
  rather than as a second paper competing with the main project-value inversion and
  rank-minimality contribution.

## 2026-06-28: Round 90 Abstract Alignment With Operational Rank Discipline

Review status:

- Spawned an independent AER/QJE-style AE/reviewer after updating the abstract.
- The reviewer passed the round and found no critical issue. The reviewer judged that
  the abstract now captures the operational rank/minor result and pre-ranking
  measurement discipline without becoming a methods paragraph, while keeping the
  horizon-forgiveness primitive and theory-first framing central.

Changes made:

- Updated the abstract's scalar-benchmark sentence so scalar quality cannot generate the
  reversal without measured region-specific project effects or costs.
- Updated the abstract's rank sentence so it now states the two-by-two minor discipline:
  scalar quality implies rank at most one, while the two-boundary model predicts nonzero
  minors only when measured regional scarcity and measured project directions are both
  non-collinear.
- Updated the abstract's measurement sentence so coordinates are disciplined by
  admissible task families and project steps measured before the ranking exercise.
- Kept the abstract compact enough that the PDF still reaches the Introduction on the
  first page.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 50 pages, and page 1 still reaches the Introduction.
- The LaTeX log contains no warnings, overfull/underfull boxes, undefined references,
  or rerun prompt.

Current assessment:

- The abstract is now aligned with the current paper rather than an earlier version of
  the paper. It states the primitive, main inversion theorem, scalar benchmark, and
  operational rank/minor discipline at a top-journal theory-abstract level of
  compression.

## 2026-06-28: Round 91 Intuitive Abstract Rewrite

Motivation:

- The previous abstract was formally accurate but read too much like a theorem and
  measurement checklist. It compressed the contribution, scalar benchmark, rank/minor
  discipline, and measurement design into one technical block before giving the reader
  enough economic intuition.
- The user asked to restart from the abstract and make it read more like a top
  economics journal abstract: puzzle first, primitive second, result intuition third,
  and restrictions last.

Changes made:

- Rewrote the abstract around the economic puzzle: low-cost AI systems erase frontier
  premia in some markets while small frontier improvements remain valuable in others.
- Replaced the dense theorem phrasing with the intuitive primitive: tasks are hard
  because they can require long sequences of coordinated actions and because they may
  give little room to observe, correct, retry, or roll back mistakes.
- Stated the horizon-by-forgiveness mechanism in plain language: serial depth governs
  how many local errors can compound, while forgiveness governs how costly each
  remaining error is.
- Reframed the main theorem as a project-value rule: a project is valuable where it
  moves the scarce boundary.
- Kept the scalar-quality critique and sign/rank restrictions, but moved them to the
  end of the abstract as implications rather than opening technical machinery.

Verification:

- `python3 paper_task_frontier_race/site/task_frontier_race_math_check.py`
  passed with 99 pass, 0 fail.
- `latexmk -g -pdf -interaction=nonstopmode -halt-on-error task_frontier_race.tex`
  succeeded in `paper_task_frontier_race/site`.
- The final PDF is 50 pages, and page 1 still reaches the Introduction.
- The LaTeX log contains no warnings, overfull/underfull boxes, undefined references,
  or rerun prompt.

Current assessment:

- The abstract now reads less like a technical referee-facing summary and more like an
  initial-submission economics abstract. It still preserves the paper's theory content:
  horizon by forgiveness, project-value inversion, scalar-quality failure, and
  sign/rank restrictions.
