Some people are dramatically better at activities like sports, music and chess than other people. Take the basketball great Stephen Curry. This past season, breaking the record he set last year by over 40 per cent, Curry made an astonishing 402 three-point shots -- 126 more than his closest challenger.
What explains this sort of exceptional performance? Are experts "born", endowed with a genetic advantage? Are they entirely "made" through training? Or is there some of both?