# LSI-PSD-11 v2.0 Expanded Edition

Topic: historical and model-theoretic comparison of structurally productive error.

The paper compares Carnot/caloric theory, phlogiston and oxygen, Lorentz/ether, the Bohr model, ideal-gas idealization, effective field theory, modern model-discrepancy methods, and AI formal-specification defects. It treats theory change as component-wise revision and descendant survival rather than binary memory replacement.

Files:
- `paper.md` — canonical UTF-8 manuscript.
- `SOURCE_POLICY.md` — canonical source policy.
- `validation.json` — validation results.
- `CHECKSUMS.sha256` — release checksums.