"Josh Kaufman has a great video at TEDx about how to learn anything. Unlike Malcolm Gladwell’s 10,000 hour theory on learning, Kaufman proposes that people can learn anything without the 10,000 hours input. He differentiated that the 10,000 hour rule applies only to expert level performance — to get to the top of a given field. Instead, you only need to get to an okay level competency about a subject for most things."

The 1st 20 hours — Josh Kaufman’s theory (Thoughts on Learning)
Getting Decently Good vs Expert level
medium.com