Suppose there are three people, each of whom hold an opinion on some topic which contradicts the other two. So two out of three think they are right, yet at mos

Suppose there are three people, each of whom hold an opinion on some topic which contradicts the other two. So two out of three think they are right, yet at most one out of three actually is. This is expected, when people disagree about the world. There is no need to bring psychological biases into it.