The life of people on earth is obviously better now than it has ever been—certainly much better than it was 500 years ago when people beat each other with cats. This may sound silly but now and then when I read old fairy tales and see an illustration of a hunchbacked hag with no teeth and bumps on her nose who lives by herself in the forest, I think: People looked like that once. They lived like that. There were no doctors, no phones, and people lived in the dark in a hole in a tree. It was terrible. It’s much better now. But we are not happier. I believe we are just cleaner, more attractive sad people than we used to be.