Working doc on north-star learning 4159. Open questions inline.
Related: late onboarding 3359, deep-dive memex 3415.
Cross-section thread: 2026-09-05 retrieval. The connection matters because both pages touch the same underlying question — see the discussion in the linked page.
- Dau → open-source → eval. Worth a second pass; the DAU angle keeps coming back.
- Vision → thesis → discovery call. Worth a second pass; the vision angle keeps coming back.
- Valuation → compensation → retention. Worth a second pass; the valuation angle keeps coming back.
Status: in-flight. Owner: me. Blocker: waiting on infra review. Next checkpoint: end of week.