"Every elite athlete [actually, every human, for that matter] is born with certain genetic variations that either aid or hinder his or her potential for success on the playing field. An incomplete list: arm length, leg length, toe length, foot size, lung capacity. Each one of these characteristics, depending on the sport, could be the difference between first place and also-ran. For example, take Jamaican superstar sprinter Usain Bolt. Why aren't we outraged at his ridiculously long legs, which allow him to gobble up the track faster than his competitors?