I came here thinking about this exact part. Well, many of them, but this one in particularly.

What surprises me about Elon is how much he can talk about other peoples' work without doing any of it himself. And yet each time I hear him talk about something I'm well-versed in, he sounds fairly oblivious yet totally unaware of that fact.

His go-to strategy seems to be hand waving with a bit of "how hard could it be"?

He's very fortunate he has competent staff.