“The belief that one’s own view of reality is the only reality is the most dangerous of all delusions.” Paul Watzlawick, 1976. From Forward to How Real is Real.
George Carlin put it like this: When you are driving behind a slow person who you want to pass, they are an asshole. When someone behind you tries to pass you, they are a maniac.
We laugh—because it’s true; we see ourselves. In this case it’s especially embarrassing (even idiotic) that we believe we are right, whatever our position. And it does nothing to help us get along or understand our lover or our neighbor.
As the old AA saying goes: Would you rather be right, or in relationship?
Multiple versions of reality, some contradictory, all are the result of divergent experiences and communication processes, none a reflection of an external, eternal, objective truth.