Why can't modern robotics come close to replicating the dexterity of a five-year-old? How do great quarterbacks always seem to know where their receivers are? And given Michael Jordan's basketball prowess, why couldn't he crush a baseball? Whether it is timing a 95-mph fastball or reaching for a coffee mug, movement requires a complex suite of computations that many take for granted. On a quest to discover what actually drives human movement and its spectacular potential, Zach Schonbrun interviews experts on motor control around the world, uncovering the common denominator among such extraordinarily talented athletes as Stephen Curry, Tom Brady, Serena Williams, and Lionel Messi, as well as musical virtuosos, dancers, rock climbers, and racecar drivers.