Comment by jbstack

You seem to be implying that at after a certain number of years (e.g. 79) you wake up one day and say "I'm fulfilled and have nothing left I'd like to achieve".

As someone who occasionally works with terminal patients, I've never seen that in practice. In reality most people desperately wish that they could carry on living, and have plenty of unfinished business that they'd like to see through. The only exception I've seen is when someone is in so much pain that they just want to end the suffering.

If we turn your argument on its head, a person who dies at 20 is just as fulfilled as a person who dies at 79. So why should anyone bother trying to live a long and healthy life?