No one likes smug know- it-all friends, relatives or co-workers who believe their knowledge and beliefs are superior to others.
But now these discussions at the dinner table, bar or office might be less annoying. A new University of Michigan study indicates what many people suspect: these know-it-all people are especially prone to overestimating what they actually know.
Even after getting feedback showing them how much they didn’t know relevant political facts, these people still claimed that their beliefs were objectively more correct than everyone else’s. On top of that, they were more likely to seek out new information in biased ways that confirm their sense of superiority.