I tried listening to the video on the 1.5× speed. Even so, the density of ideas is horribly low. It's something like:

Science is successful, but that makes scientists overconfident. By 'rationalists' I mean people who believe they already understand everything.

Those fools don't understand that "what they understand" is just a tiny fraction of the universe. Also, they don't realize that the universe is not rational; for example the animals are not rational. Existence itself has nothing to do with rationality or logic. Rationalists believe that the universe is rational, but that's just their projection. Rationality is an emergent property. Existence doesn't need logic, but logic needs existence, therefore existence is primary.

You can't use logic to prove whether the sun is shining or not; you have to look out of the window. You can invent an explanation for empirical facts, but there are hundreds of other equally valid explanations.

That was the first 16 minutes, then I became too bored to continue.

My opinion?

Well, of course if you define a "rationalist" as a strawman, you can easily prove the strawman is foolish. You don't need more than one hour to convince me about that. No one in this community is trying to derive whether the sun is shining from the first principles.

I am not sure whether "universe is rational" is supposed to mean that (a) the universe has a relatively short description which could be understood by a mind, or that (b) the universe itself is a mind, specifically a rational one. Seems like the meaning was switched in the middle of an argument, using a sleight of hand.

In summary, my impression is of muddled thinking, and of feeling superior to the imaginary opponents. Actually, maybe the opponents are not imaginary -- there are many fools of various kinds out there -- it just has nothing to do with the kind of "rationality" that we use here, such as described e.g. by Stanovich.