Boredom is low energy and negative. It's way off in the corner by itself. So what is going on when we're in that emotional state? And why are we not in interest, which is an emotional state that is high energy and positive? I think the best research on this is being done by a professor at university florida named eron westgate, who is a young psychologist. She as written compellingly about a theory of boredom That says that we experience this emotion like we experience any emotion, for functional reason. The difficulty level may be ok, but the task itself is not relevant to any of your goals.