Review disposition - 10 September 2026 Completed The erratum-bearing source has a full review PDF, a shortened Article with a one-page abstract/keyword cover and a separate Supplement containing the original appendices. All six figures are vector PDF/600-dpi PNG. Figure 1 is regenerated from its corrected canonical source. Titles, source hashes, seeds, word counts and immutable repository links are recorded consistently. References now correct the Strogatz-Mirollo author order, long-author APA forms, selected identifiers and the Pew report series. Exact editorial replacements are reviewable in article-edits.json; the canonical scientific argument is retained. Independent scientific review - all pending 1. Dynamical systems: assumptions and necessity lemmas; continuum/finite-N scope; the refuted conjunction and requirements for a corrected floor-dependent one. 2. Alignment and framing: bounded interpretation of capability/constraint results and the distinction between synthetic agent ecologies and real AI systems. 3. Coupled systems and substrate: throughput/health/overshoot coupling, alternative admissible models and limitations of the civilizational mapping. Required evidence: dated independent reports attached to issue #60, followed by an explicit author disposition. Agent-based editorial and production checks do not replace those reports or independent model replication. Author/editorial decisions - Read and approve the shortened Article; the full source and exact replacements remain available for comparison. No numerical result or claim is strengthened. - Resolve any scientific-review findings before submission. In particular, the full historical conclusion still uses an onset-based rhetorical definition; its surrounding erratum is authoritative. That repeated flourish is omitted from the shortened Article, which preserves the explicit conditional result. - Confirm originality, concurrent-submission, funding/conflicts and complete tool-use declarations. The MIT Press author policy requires disclosure of AI assistance. The cover draft records this editorial assistance but cannot attest to the manuscript's earlier development or author declarations. https://direct.mit.edu/journals/pages/authors - At accepted submission, supply the journal's required BibTeX/source bundle, filename conventions and publication forms. Initial review uses PDF. The current readable references and TeX sources are supplied; a machine-readable BibTeX conversion and acceptance declarations are not represented as complete. No journal submission, author/reviewer outreach, arXiv upload, DOI registration or live-PDF replacement was performed. Real-agent tests and independent model replication remain research work, not production tasks concealed by this package.