The happiest billionaire

If Gates is the exceptional billionaire, the one-of-a-kind who became rich and now devotes his time to philanthropy and the astonishing challenge of global health (his foundation also helps fund Crosscut), Allen is the 12th Man Billionaire, the guy who does the cool stuff that you would want to do too, who follows his intellectual passions, who experiments, who seems to truly enjoy what he has. It's a life we can envy, at least from the outside, forgetting, of course, the battles with cancer that would darken any fairy tale. There's something about Allen's passions that portray a man of expansive interests, restless curiosity, the son of a librarian whose billions have opened up the book of the world for himself.