Perception is mostly expectation (Recent thoughts on constructing perceiving machines...)

Our perceptual systems operate in such a way that we construct an internal model of our environment then react when the world around us differs from that model. In effect, we predict or "render" the world as we expect it to be and see if the world matches that prediction. We give lots of extra weight to those things which don't match the prediction, such as a pink elephant which suddenly pops into our living room...


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