Lewis Hamilton is one of the best drivers in Formula One history. He has won the world championship seven times and he's also Morgan Levy's favorite driver. The word fan has been around since at least the late 17th century, although it didn't become common for another 200 years when it was applied to sports enthusiasts. Today on Freakonomics Radio, we all know what fandom is but what's it about? Every single society that's ever been studied on Earth, you can find coalitions or groups of people who are obsessed with different things.