I can't understand the meaning of "someone reduces what they understand to be reality." in the below passage. Is it possible to think of 'what they understand to be reality' as 'better(or possible) way of seeing or doing something'? Also, I think that if someone reduces what they understand to be reality, then they can get more objective perspectives. Am I wrong?
Many people out there think that they've got the answer, that their approach is the best, that they have the truth. You've met some of them, yes? They can't all be 100 percent right, of course, because they'd contradict each other. Yet the opposite doesn't make sense either: they can't all be 100 percent wrong all the time! Instead, everyone comes from a perspective, or point of view, which, by its very nature, is limited and partial. And the more perspectives you take into account, the better you can understand something, whether it be yourself, a relationship with another person, or a situation in the world. In contrast, the fewer perspectives you consider, the more susceptible you are to fallacies or misconceptions resulting from a limited view. A fallacy occurs when someone reduces what they understand to be "reality" by ignoring important perspectives, thereby arriving at misleading conclusions.