I've rarely met people who are excellent at everything. For the areas they have problems with, I imagine human teachers are great. I imagine such people on HN

I've rarely met people who are excellent at everything. For the areas they have problems with, I imagine human teachers are great. I imagine such people on HN who think they are 'brilliant' (see a recent question) are actually only adept are certain subjects, sometimes quite a narrow subset. I'm guessing they drop the other subjects asap.