Ep 124: David Deutsch’s ”The Fabric of Reality” Chapter 6 “Universality and the limits of Computation”
ToKCast
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The Relationship Between Virtual Reality and Ordinary Reality
The relationship between virtual reality and ordinary reality is part of the deep, unexpected structure of the world. Even a machine which can render all environments that can be experienced by a person does not contain in its repertoire all logically possible environments. The things it can't do vastly outnumber the things that it can do. i shall now show, pausing there by reflection, what he's going to show, and what he's about to launch into is the diagonal argument. If you are a long time listener to tok cast, you will have encountered before the beginning of infinity also goes through explanations of diagonal arguments.
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