[Deliberate practice is necessary for overcoming performance plateau. It requires narrow focus on difficulties and this must be done outside the main activity.]

[Deliberate practice requires a degree of concentration that isn't sustainable for long periods. It will be more likely that you need to rest and not continue four hours at a time.]

[It takes more effort and concentration to make a hundred free-throws with attention to your body and form than to make three-hundred while distracted and chatting to a friend.]

[The goal of deliberate practice is to make skills and concepts more automatic, efficient, effortless and to allow one to work with larger chunks and on more complex problems.]