Maybe compared to a toddler, but this person I am talking about became a programmer at 65 after being a physicist and then a biologist. I know more old people like that from the university. I really don't think age is so much of an issue that it should us stop from prolonging life. I really want these brilliant people to have more time on Earth. And I want more time too, even if I can't learn anything new at all past 125. Life is beautiful.