Just like "deep practice" and "master coaching" isn't defined. You are referring to terms that are equally "mystical". As I've said all along, I won't disagree that people with aptitude still need to practice in order to be successful. But what I will say is that two people who both put in 10,000 hours will not necessarily be equals at the end of their journey. One might be significantly better than the other due to differenes in physical aptitude and mental aptitude. Nonetheless... I definitely won't argue that even someone who is born with physical or mental aptitude walks into an arena and crush everybody. It takes practice still, even for those with aptitude, to succeed.