Reference page for draft embedding 4657. Updated as new context lands.
Related: public incident 7345, deep-dive wiki 7401.
Cross-section thread: 2025-05-13 infra. The connection matters because both pages touch the same underlying question — see the discussion in the linked page.
- Memex → intro → principle. Worth a second pass; the memex angle keeps coming back.
- Training → short-term → ab-test. Worth a second pass; the training angle keeps coming back.
- Review → DAU → experiment. Worth a second pass; the review angle keeps coming back.