If you want to understand the concept of friction, just read anything about how it takes 10,000 hours to become an expert at something. If you want to destroy someone’s motivation, mention that little tidbit.
A couple of years ago, I came across this Forbes’ interview of Josh Kaufman, who espouses that it takes 20 hours to learn a new skill. For some people, even that’s a lot of time but it sure ain’t 10,000 hours.
Of course, we are talking about two different things here – learning a new skill versus becoming an expert at it. Based on apparent research, both are correct. However, everyone needs to think and start small. 10,000 hours is not small.