 
					
							It takes 10,000 hours of practice to achieve mastery in a field.  Roughly 417 days of continuous practice if you never stop to sleep or live.  Since that is physically impossible, it is safe to say 5 years on average.
http://www.wisdomgroup.com/blog/10000-ho...-practice/
						
						http://www.wisdomgroup.com/blog/10000-ho...-practice/


 



 
							