The brain’s second alternative is to be stubborn and stick with the original prediction. It filters the sensory input so it’s consistent with the prediction. In this situation, I could be standing in a baseball field but daydreaming (predicting and simulating) as the ball sails toward me. Even though the ball is fully within my visual field, I don’t notice it until it thumps at my feet. Another example would be the food-filled diapers at my daughter’s disgusting foods birthday party: our guests’ prediction of a baby poo aroma dominated their actual sensory input of mashed carrots.17
