Your brain is constantly predicting what will happen next.
This is known as predictive processing, a fundamental way the brain makes sense of the world.
Your brain doesn’t simply receive information from your senses and then react to it. It is continuously making predictions based on your previous experiences, comparing those predictions with incoming information, and updating them when something unexpected happens.
The cerebellum plays an important role in predicting the sensory consequences of our own movements. When the brain correctly predicts what is about to happen, the response to that predictable information is often reduced.
But when there is a mismatch between expectation and reality, the brain generates a prediction error and pays more attention.
This is happening around us all the time.
A familiar sound barely catches your attention, but an unexpected noise immediately makes you look up. You can perform a well-practiced movement almost automatically, but a small change in the environment can suddenly demand your full attention.
So, in a way, your brain is not just experiencing the world. It is constantly predicting it, checking those predictions, and learning from the difference.