That's not always the case, but the notion of "unconscious competence" is relevant here: https://en.wikipedia.org/wiki/Four_stages_of_competence https://en.wiki

That's not always the case, but the notion of "unconscious competence" is relevant here: https://en.wikipedia.org/wiki/Four_stages_of_competence https://en.wikipedia.org/wiki/Four_stages_of_competence "Unconscious competence" is particularly rife in the functional programming community. An inability to explain does not necessarily mean you just "got it", but if you've understood it, you can't necessarily explain it.