I'm only going to feel embarrassment if it was some kind of prerequisite for the lecture, and like you I would probably just look it up afterwords (probably on

I'm only going to feel embarrassment if it was some kind of prerequisite for the lecture, and like you I would probably just look it up afterwords (probably on YouTube). I would admit to ignorance if I have never learned the subject and forgetfulness if I had learned it and forgot or just had a "brain fart" and temporarily forgot which would leave me annoyed at myself. I think this article misuses embarrassed.