How many students made up your college cohort? Odds are its about 4,000—the same, if not more, than the total number of billionaires on earth.
Think about the last time you went to a sports stadium, to a concert venue, or even visited a small coastal town ahead of the fall holidays. The fewer-than 3,800 billionaires worldwide make up just one-fifth of a full house at MSG, a tenth of Yankee Stadium, and the population of your average New England town. And out of a world of more than 8 billion people, they make up a sliver so thin it barely registers: about 0.00005%, or one in every two million people alive today.