> and can’t move to any next node until you master the one you’re on

Oh that's the absolute worse way of teaching people (or, ok, that's my pet peeve in education)

"but how do you expect to learn stuff without knowing the basics blah blah blah" well, because maybe actually knowing how it is used in the end helps with learning. Instead education seems to focus on wasting a lot of time with "basics" disconnected from reality then finally teaching things how it is.