http://www.bakadesuyo.com/2011/09/what-marks-the-transition-from-novice-to-expe/

http://www.bakadesuyo.com/2011/09/what-marks-the-transition-from-novice-to-expe/

One of Ericsson's core findings is that how expert one becomes at a skill has more to do with how one practices than with merely performing a skill a large number of times. An expert breaks down the skills that are required to be expert and focuses on improving those skill chunks during practice or day-to-day activities, often paired with immediate coaching feedback. Another important feature of deliberate practice lies in continually practising a skill at more challenging levels with the intention of mastering it.^[4] Deliberate practice is also discussed in the books, "Talent is Overrated," by Geoff Colvin,^[5] and "The Talent Code," by Daniel Coyle,^[6] among others.
Two recent articles in Current Directions in Psychological Science criticize deliberate practice and argue that, while it is necessary for reaching high levels of performance, it is not sufficient, other factors such as talent being important as well.^[7][8]