"Yes, I said, but if aging were so valuable, why do people always say, "Oh, if I were young again." You never hear people say, "I wish I were sixty-five." He smiled. "You know what that reflects? Unsatisfied lives. Unfulfilled lives. Lives that haven't found meaning. Because if you've found meaning in your life, you don't want to go back. You want to go forward. You want to see more, do more. You can't wait until sixty-five."