Exactly. It’s easier to deliberately practice skills in closed domains or with an established pedagogy like piano where there are clear feedback loops. It’s harder to deliberately practice an open domain like doing business. That’s where you have not only to learn from experience but learn the right things from experience in the context of that experience.

Just because something worked doesn’t mean it will work all the time. You also have to learn the context it worked in and reason analogically. Cedric calls this concept instantiation and there’s more to it than that but it’s been a useful corrective to my previous adulation of first principles only thinking (which also only works in some circumstances and not others)