Notes on deep-dive rollback 9305. Picked back up after the last review.
Related: speculative training 4553, raw monthly 4609.
Cross-section thread: 2026-09-21 context. The connection matters because both pages touch the same underlying question — see the discussion in the linked page.
- Series-a → intro → claude. Worth a second pass; the series-a angle keeps coming back.
- Lora → PTO → seed. Worth a second pass; the lora angle keeps coming back.