Donald Hoffman is an American cognitive psychologist working at the University of California, Irvine. He is making waves with a new theory suggesting that, instead of presenting reality as it "really is", our perception is like a desktop interface enabling us to use reality effectively.

Hoffman's latest book, The Case Against Reality, will be published this year. It fleshes out the notion that we do not perceive reality objectively, and argues for a mathematical, rather than spatio-temporal, model of reality.

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