[hinkley]

I suspect part of extending human life much beyond 120 years is going to be finding ways to delay physical adulthood, so that proportionally you still have the same time to learn and grow, and those growth hormones are still kicking around repairing things for longer. Because the quality of life 100 years after your organs have stopped repairing themselves is not going to be that great, but if you could reduce that to 80-90 years then maybe.