“Confusion over how a person's extraordinary skill is developed runs deep. The heated debate over writer Malcolm Gladwell's "10,000 hour rule," as put forth i his popular book Outliers: The Story of Success, indicates that it is not just refeerees who get tongue-tied trying to pinpoint the fundaments of their expertise. Proficiency in activities from musicianship to athletics, Gladwell contends, can be achieved only through vast amount of practice (10,000 hours was the ballpark figure he cited, applying it to the triumphs of Bill Gates and the Beatles, among others.)”