I've never heard it said that after 10,000 hours anyone can be great at anything. I've always heard it said that it takes 10,000 hours to master a field - wheth

I've never heard it said that after 10,000 hours anyone can be great at anything. I've always heard it said that it takes 10,000 hours to master a field - whether that be a subject, aport, art, or what-have-you. In this context "master" just means you have all the basics, you're competent and people would recognize your competency. That's a looooooong way from being great.