I know that. The "claim" or "idea" that 10,000 will make you an expert then.
From your posts you are very much on the coaching and nurture side of the coin as opposed to the talent side, so how do you feel about this study diminishing the role of coaches and giving more importance to the Talent ID people?
As I said on the other recent thread on talent - Talent is a combination of traits or characteristics that manifest uniquely depending on the environment or situation they interact with.
I haven't listened to the SportsCoachRadio piece yet, but Glenn usually has great guests who know their subjects ( I did record an interview with Glenn a couple of weeks back myself - not sure when it'll air yet though!) - I will have to listen before I pass any observations.
As for the study, my understanding is the researchers amalgamated many other research papers to reach their conclusions - so it depends on how they interpreted those studies.
We know that time on task is vital to the performance of secondary skill activity. How you understand the concept of "deliberate practice" is relevant too - for many it involves blocked, repetitive practice - by which definition other modes of practice or environmental training may be discounted from the time on task equation.
There are of course many other factors which come into play in the pursuit of mastery - a great number of psychosocial developments as well as the athletes physical suitability for the demands of the task. The recent Great British Medalists study looking into the sporting and psychosocial development of 2 groups of British athletes - 15 Elite and 16 Super-Elite (those being medalists at Olympic games and Multi-medalists at Olympic Games - 100 World and Olympic medals were won in the careers of the athletes in the study). In total the athletes had spent some 435,276 hours of specific training in their main sport. There were many highly significant psychosocial factors evident in the Super-Elite group, including significant negative trauma at a young age, prior to a positive sporting experience, a key commonality between both groups was being exposed to family values which emphasised a
'culture of striving' from an early age along with significant milestone turning points that led to increased motivation. Personality traits tended towards adaptive perfectionism in the Super-Elite group, remembering personality develops in childhood and isn't "set" until adolescence.
Essentially, environment plays a massive part along with psychosocial development and time on task.