Here’s the problem with advice about becoming an expert: it’s almost always junk. It’s not just that the advice itself is bad, it’s that it’s somehow both incredibly vague and aggressively overconfident:

“Practice makes perfect!” Oooh, it’s got that motivational poster energy “Embrace failure.” Look, I’ve embraced failure so many times we’re in a common-law marriage.“Just start!” Another winner. Just start. Really?

Here’s the thing: there’s a whole field of legitimate research dedicated to ...