I'm beginning to feel obsolete. It hasn't all been time wasted, however. In eighty years I have learned some things that I wish I had known when I was twenty, or forty, or even sixty. In the interests of plain sociability and improving the species, I'll share some of these insights with you. Memory lasts as long as you keep using it.
Most people begin to die from the haircut, down.
They are brain-dead for years, prior to their actual funeral, and all because of lack of intellectual activity. The most vulnerable components in the physical machine are the knees. Too many birthdays make your knees hurt. Check it out. Age used to bring cataracts, glaucoma, and related eye problems leading to visual dysfunction and, ultimately, blindness.