Comparison of pedagogical scenes

Name	Medium	Gets to deep stuff?^{[note 1]}	Focus on explanation vs creating/doing?^{[note 2]}	Focus on analyzing explanations?	Totally new stuff, or just "do more of the same, but faster and with more polish"?
Generic pedagogy, say "good" math books like Tao, Axler, Spivak	Text	Yes (but it's very difficult work!)	Explanation	No	same old
Tools for thought	The point is to create new mediums!	Yes?	Creating/doing	Yes	Totally new stuff!
Research distillation^[1]	Mostly text, with some interactive widgets	Kinda (aspirational, but most online essays are still not so deep)	Explanation	No, or at least not in public	faster/more polish
Explorable explanations	Interactive widgets	Not really	Explanation	No	mix of both
3Blue1Brown	Non-interactive video with visualizations	No	Explanation	No	mix of both
Khan Academy	Tutor-like videos and text	Explanation	Kinda, but it only targets "easy" topics	No	just cover all the high school topics
Asynchronous Discord severs	Chatroom	Kinda (not in a comprehensive way, but people who are asking their questions are actually asking about the stuff they are struggling with)	Explanation	No	The concept itself is new (as described in my LW post) but once it's been created, there is no drive to make it even better; instead, the drive has been to expand to more and more textbooks/subfields of math
Explanation science	Mostly text?	Yes (aspirational)	Explanation	Yes	Totally new stuff!

What links here

↑ Is the material comprehensive, and can it be used as a standalone resource? Or is it more of an auxiliary thing to make the topic more entertaining? Does the thing have exercises that really deepen understanding? Does it take desirable difficulties into account?
↑ Does the field or scene see the analysis of explanations as itself a topic of the work? Or is it more just a thing that happens outside of the public view? Is a discussion of a new technique to explain things seen as a contribution to the scene?