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…
I got the impression that the research was going the other way. A lot of current research reporting seems to indicate brain plasticity is broader and longer-lasting than we thought.
Course. I'm 27+ so a bit of bias might be creeping in.