One-sentence summary: research shows that in a whole lot of cases, presenting people who have wrong beliefs with contradictory facts actually intensifies those wrong beliefs.
Thinking about this just frustrates me no end. I assume that I am vulnerable to this error. Yet I believe wholeheartedly in the idea that gathering facts and understanding is a key to making good decisions. How do I guard against this pattern of error in myself? How can I expect anyone else to guard against it?