That's exactly what I thought. Jim Keller had a lot of deep insights that he was boiling down to simple terms. It was obvious he had thought about these ideas for a long time and that what he was saying came from a lot of experience. He would talk about things like switching lanes in driverless cars being a matter of ballistics.

Lex Friedman just interrupted him in a whiny voice to say "it's not thaaat simple". He basically just got in Jim Keller's way. It would be like someone interrupting a john carmack presentation every few minutes to say "I don't know about all that". It was a shame.