Some readers will know this old joke. A visitor to New York City gets lost going to a concert and asks a man carrying a violin case, “Sir, can you tell me how to get to Carnegie Hall?” The man smiles at him and responds, “Practice, practice, practice.” In “Outliers: The Story of Success,” Malcolm Gladwell asked a different question: “How do some individuals win fame and fortune?” He found the answer in such places as their culture and the circumstances of their childhood, their passion and drive, their personal habits and experiences, and even the dates of their birth. Gladwell also points out as one factor for success the “10,000-hour rule,” an idea he popularized contending that many entrepreneurs, artists, musicians, and others who devote themselves to a goal or a craft may, after years of intensive study and practice, achieve their ambitions. Florida State University’s professor Anders Ericsson …