You've undoubtedly heard the old adage, 'practice makes perfect.' Daniel Coyle, in his book, 'The Talent Code,' explains the biological imperatives behind the act of practicing a task over and over in order to build-up a skill in a certain area. 'The Talent Code' explains that practice, and deep practice in particular, helps to build-up fatty tissue called myelin around neural connectors in our brains, helping to retain data between neural transfers and improving data throughput in the process. So one mystery unlocked, I suppose, but what motivates us humans to put in the amount of work required to beef up our myelin to such a degree that we can actually become great at something?