Daniel Dennett says it’s because a “war metaphor” is wired into our brains when it comes to disagreement. When there’s a war, someone is conquered. It’s not a discussion of facts and logic; it’s a fight to the death. No matter who is really right, if you win, I lose. In almost every conversation, status is on the line. Nobody wants to look stupid. So, as Dennett explains, we set up a situation where learning is equivalent to losing.
