In the world of athletics, the idea is that if you want to be the best, you have to specialize young and maintain near laserlike focus. The archetypal example is Tiger Woods, who, as the legend goes, started swinging a golf club before he could walk. More recently the focus has shifted to grit. The secret to success, we’re told, isn’t skill or raw talent but the ability to persevere. But that may not be the whole story. In his new book Range, author David Epstein challenges the arguments for specialization and grit, arguing that a more generalized approach is the surest route to excellence. Outside editor Christopher Keyes spoke with Epstein to about the advantages of doing a bit of everything.