Based on history alone, it's more likely than not a No. 1 seed will cut down the net at the end of the NCAA Tournament. Only one team gets to be a champion, and the number of teams capable of winning six consecutive games against the very best is small.

Welcome to FTW Explains, a guide to catching up on and better understanding stuff going on in the world. You may have spent a long time using the name "Cinderella" to describe an underdog team winning a lot in March Madness. But if you're stopping and wondering what’s up with that? We’re here to help.