I think that the fact that there are special types of learners have been debunked thoroughly.

Veritasium recently made a video, too [0].

3b1b is a fantastic supplementary resource. But you can't start with it, or use it as your primary resource. That would be a mistake.

[0]: https://youtube.com/watch?v=rhgwIhB58PA

That video is not convincing, at least for me, wrong style learning is more tiring. I can read a book about a subject all day, but I can only listen to about an hour of lecture a day.

I'll absorb the same amount - during that first hour, but after that nothing further is getting in my head.

Also the computerized thing about a diagram vs words isn't a learning style difference - both of those are visual, just one is more effective (obviously a diagram is better).

His on-the-street test is also bad, someone with a different style will, for example, say the image name out loud, if they need it auditory.

What you say and the video says are not conflicting.

These are just personal preferences. There are no inherent style at the biological level. That's what "learning style" s are about.

I personally have found a combination of all (with more focus in applications and teaching the topic to others) works best for me.

> His on-the-street test is also bad

Agree. It was amusing in a bad way.