[obeone]

While it is true that many of us will experience some kind of brain failure (if we don't die of something else first) making claims about absolutes like "zero" and "none" are not perhaps constructive to the conversation. My experience with my 90-year-old father in law is that he can recite far more stories about being 10 in rural Kansas in the '30s than I can of being 10 in Colorado's suburbs. He'll also demolish any who care to challenge him at Scrabble or contract bridge. Also, he happens to be the nicest, most unassuming guy ever. Dementia may eventually come for him, but today is not that day. YMMV