I'm more surprised someone would try to use YouTube to learn about higher order functions. I learn this lesson every few weeks. Yesterday I tried to dive into

I'm more surprised someone would try to use YouTube to learn about higher order functions. I learn this lesson every few weeks. Yesterday I tried to dive into something technical. I searched for info on the latest research on education methodology. The top video was just some guy listing things out that seem like "common sense" teacher "wisdom" without context or reference. Not one mention of mastery learning, assessments, tutoring sigma, deliberate practice... YouTube is lowest common denominator content, that's why they removed downvotes. The less signal of quality, the better for them. Just like how Netflix removed star ratings.