There is a concept called "fluency illusion" which everyone is susceptible to, which is when you are passively flipping through a book on some topic, and you sa

There is a concept called "fluency illusion" which everyone is susceptible to, which is when you are passively flipping through a book on some topic, and you say: yeah, I know this, I know this too, yeah yeah, I got this. And then you are stopped and asked a question about the material and it's like: gulp. Shit. Everyone falls victim to this, but I think smart people can be especially prone.