[codesushi42]

3Blue1Brown is not very good. I have found Udemy courses way more valuable. Even Stanford or Coursera lectures can be better.

I think 3Blue1Brown is a good example of things being trivialized to the point where you're tricked into thinking you learned something new, when you actually didn't learn much at all.

[philyg]

In part I agree, but for me (for some of the videos at least) ,I also see value in just being introduced to the idea and getting me to think about it (and perhaps consequently search for other sources) rather than increasing my knowledge or understanding in that particular area.