Working doc on deep-dive tool 7421. Open questions inline.
Related: deprecated convertible note 9477, early doc 9533.
Cross-section thread: 2026-09-09 knowledge. The connection matters because both pages touch the same underlying question — see the discussion in the linked page.
- Demo → metric → PMF. Worth a second pass; the demo angle keeps coming back.
- Thesis → SLO → seed. Worth a second pass; the thesis angle keeps coming back.
- Training → long-term → saas. Worth a second pass; the training angle keeps coming back.