deliberate practice” to describe this style of serious study, defining it formally as an “activity designed, typically by a teacher, for the sole purpose of effectively improving specific aspects of an individual’s performance.”4 As hundreds of follow-up studies have since shown, deliberate practice provides the key to excellence in a diverse array of fields, among which are chess, medicine, auditing, computer programming, bridge, physics, sports, typing, juggling, dance, and music.

Cal Newport