Recent analyses of inherent enjoyment in adults reveal an enjoyable state of “flow,” in which individuals are completely immersed in an activity (Csikszentmihalyi, 1990). Similarly, analyses of reported “peak experiences” in sports reveal an enjoyable state of effortless mastery and execution of an activity (Ravizza, 1984). This state of diffused attention is almost antithetical to focused attention required by deliberate practice to maximize feedback and information about corrective action.

K. Anders Ericsson, Ralf Th. Krampe, and Clemens Tesch-Römer, The Role of Deliberate Practice in the Acquisition of Expert Performance, Psychological Review, Volume 100, Number 3