Have you ever suspected that people tend to see what they expect to see? If you have, then you might want to check out my new book Surfing Uncertainty: Prediction, Action, and the Embodied Mind. The book explores an emerging view of the perceiving brain as a prediction machine. Brains like that are not cognitive couch-potatoes, passively awaiting the next waves of sensory stimulation. Instead, they are pro-active prediction engines constantly trying to guess at, or anticipate, the shape of the incoming sensory signal.