A lot of the people on that list at least went to college. It was a lot easier to get away with this back then, whereas today no one will even look at you unless you have a diploma of some kind (in most fields, at least). I am far more impressed with the ones who never even started, or who never even finished the equivalent of high school.<p>A good number of people on the list are entrepreneurs, too. Even today, you can get away with having far less formal education if you strike out on your own.