This is all characteristic of the form of autism he has.
To me it looks like he is trying to take the ideas in his head and "dumb them down" enough in his explanation to get the point across to everyone who might hear what he's talking about. It's like he is struggling to find the words to describe the idea in a way he knows will get across to most people. Slow careful consideration of the words he uses is a fantastic trait.
After a long time in my high tech career I finally learned that somebody who can give a response understandable by who is asking the question, regardless of their IQ, experience, or education level, is somebody who fully understands what they are talking about. The ones who say "It's too complicated for you to understand", "You wouldn't be able to understand it", etc., are the ones who don't understand it themselves.
And likewise a teacher can be filled with knowledge and expertise on a particular subject or topic but if they are not able to impart that understanding to their students then they are a failure in my opinion and therefore useless......their entire mission is to teach, not to impress people with what THEY know.
Perhaps the best compliment I ever received in teaching university courses came from a student who said they had a very similar course as an undergrad (with the same textbook), but they got a lot more out of it from my teaching because I repeatedly explained the content and theories far better than the other instructor at the other university. The cool thing is that the other instructor is literally the famous author of THE TEXTBOOK for that class, which is used all over the country. I'll take that compliment any time.
