Bach is rapidly firing out intriguing statements.
Lex is just trying to come up with worthy follow-up questions that also sometimes align with his plan for the podcast. And his default is to speak carefully because he knows that the topics are complex and algorithms are transcribing them etc. So he is starting at a fairly slow normal just for clarity and the high level of Bach's comments requires him to think more.
I would bet that you would not be able to do better. Actually I bet that you would pause just as long and then often reply with something barely relevant to what was just said, such as "wow that was deep".
Seriously, you think that Bach hasn't spent years preparing that elegant information and philosophy? And Lex was trying to adapt on the fly. But you casually suggest that you could have a rapid-fire intelligent back-and-forth with Joshua Bach as he lays that stuff on you.
I would like to see it. Go ahead, record a conversation with Bach on a topic that is slightly different from the existing podcasts/talks.