Why do we tend to believe information that confirms our beliefs?

We tend to believe information that confirms our beliefs because it feels familiar, like a favorite toy we already know how to play with.

Imagine you have two toys: one is your favorite dinosaur, and the other is a new robot. When someone tells you something about your favorite dinosaur, it sounds true because you already love that dinosaur, it’s like hearing a story you want to be real. But if they tell you something about the robot, it might sound strange or even silly, especially if you don’t know much about robots.

Now imagine you're playing with your favorite dinosaur and someone says, “This dinosaur is super strong!” You believe that because it matches what you already think, it's like adding a new power to a toy you already love. But if they say, “This dinosaur is actually tiny,” it might feel confusing or even annoying.

So we often go for the stories that match our favorite toys, the ones we already know and trust, that’s why we believe what confirms our beliefs!