I've noticed that as well. He frequently also gets distracted thinking about taking ideas to such an abstract level they don't really make sense any longer, he looks off at the ceiling somewhere, and then the guest continues off as if they didn't see that. It makes me crack up every time, hah.

This is in contrast to many other podcasters who stay engrossed in surface level details and never graduate to thinking about overarching concepts. Lex just zooms there too fast sometimes.