Harry Truman once said: The next generation never learns anything from the previous one until it’s brought home with a hammer. . . . I’ve wondered why the next generation can’t profit from the generation before, but they never do until they get knocked in the head by experience. A big theme throughout history is that preferences are fickle, and people have no idea how they’ll respond to an extreme shift in circumstance until they experience it for themselves. Same as Ever Morgan Housel