Most of us, most of the time, live with the unquestioned belief that the world looks as it does because that’s the way it is. There is one small step from this belief to another: “Other people view the world much the way I do.” These beliefs, which have been called naive realism, are essential to the sense of a reality we share with other people. We rarely question these beliefs.
Thanks to this feature, people can hold a model of the world in their head without overloading the brain. Because of it, it's difficult to believe that someone with an opposing view is sincere. It's hard to accept that another person has a different world in their head. Instead, it seems that the world is only as we see it, and everyone who disagrees does so to spite us. Hence the accusations of bias, corruption, or stupidity.
The world would be cozier if we could feel another person's world, but unfortunately, we cannot.