That's part of the joke. People, even very smart people, do stupid things all the time. It's part of being human. In my experience, a subset of very smart peop

That's part of the joke. People, even very smart people, do stupid things all the time. It's part of being human. In my experience, a subset of very smart people do "not smart" things at a very high rate. A trite example is the absent-minded professor who can't find the glasses he's wearing on top of his head. But it's a real thing, a depth of focus so intense that they temporarily lose sight of the bigger picture. It happens, and sometimes it's funny.