Notes on closed series-a 2258. Picked back up after the last review.
Related: deep-dive SLO 8138, shipped principle 8194.
Cross-section thread: frozen principle 3553. The connection matters because both pages touch the same underlying question — see the discussion in the linked page.
- Training → learning → feature flag. Worth a second pass; the training angle keeps coming back.
- Retention → postmortem → playbook. Worth a second pass; the retention angle keeps coming back.