I had a different take on this paper. There's a well-known phenomenon whereby narcissism and self-evaluation is generally related to positive mood. It's part o

I had a different take on this paper. There's a well-known phenomenon whereby narcissism and self-evaluation is generally related to positive mood. It's part of an overall positive tint. So one interpretation of this is that people who tend to be optimistic also tend to just feel better in general, for whatever reason. It's not clear to me these "benefits" would transfer to all scenarios, nor is it really clear that it's about insight in general in the way people usually understand it.