Simone Biles received a crash course on it five years ago in Rio de Janeiro. The American gymnastics star had already won three gold medals at the 2016 Olympics when she began her routine in the beam finals. Midway through her set, the then 19-year-old lost her balance, as tends to happen when trying to execute world-class skills on a piece of wood narrower than the average iPhone. She reached down to steady herself, preserving a bronze in the process. She was pumped. Others weren’t. “People were really upset,” Biles told The Associated Press in May. “I’m like, ‘Guys it’s still a medal for the country and it’s still a medal for myself.’ If anybody else was going to get bronze they would have been cheering but it was Simone so they were, like, pissed.”