How Does the Brain Operate?

In any given moment, our eyes take in about a billion bits of information. But if all this was transmitted to the brain, we would get overwhelmed by it. By the time the information actually gets to the brain, it's been reduced a thousand fold. The delusions we have about what we are eating can prompt us in the direction of certain kinds of food. This is why our brains are designed to perceive taste in the first place.