> conversely, i've observed a number of seniors in the 80-90+ range that are still sharp, and utilize new tech like pc's and are able to process information more quickly than some people who are at the theoretical peak of their abilities. the main difference is that those people never actually stopped trying new things and thus their brain was able to keep forming new neural pathways as easy as teenagers can. this is a very important and often missed point. the brain does seem to be, like paid leave, "use it or lose it." i have had the same experience as you. my painting instructor for instance is in her 70s and sharp as a tack.
United States