Lately we're finding good arguments for the idea that people start declining in abilities earlier than we thought. At the same time, there's a lot of work being done on life extension. What happens if we extend life to, say, 150 and what we get is this long, 100-year decline into complete cognitive paralysis? I'm 43 and I don't feel like I'm losing it. In fact, in some ways I feel more cognitively adept than I was at…
Wisdom is what it's called. After 40 your reflexes are slower and you are less likely to have your world shattering idea. OTOH you are probably a better judge of probabilities of success/failure, people's capabilities, and allocation of resources. Lot's of people are significant contributors into their 70's. I dont think living to 150 means being 80 for 80 years. Probably middle age get stretched forever and the decl…
For some people, creativity increases with age.
But still, quick thinking and high energy levels are useful. I think it's crucial that we compress schooling as much as possible so people can do something important while they still can.