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Colin Barrett

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China Between Empires: The Northern and Southern Dynasties (History of Imperial China, #2)

by Mark Edward Lewis

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(page 172 of 258)
— Feb 12, 2017 03:12PM

Jan 09, 2017 01:29PM

“The theory of computation has traditionally been studied almost entirely in the abstract, as a topic in pure mathematics. This is to miss the point of it. Computers are physical objects, and computations are physical processes. What computers can or cannot compute is determined by the laws of physics alone, and not by pure mathematics.”
― David Deutsch, The Fabric of Reality: The Science of Parallel Universes--and Its Implications

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“If it turns out that all this time we have merely been studying the programming of a cosmic planetarium, then that would merely mean that we have been studying a smaller portion of reality than we thought. So what? Such things have happened many times in the history of science, as our horizons have expanded beyond the Earth to include the solar system, our Galaxy, other galaxies, clusters of galaxies and so on, and, of course, parallel universes.”
― David Deutsch, The Fabric of Reality: The Science of Parallel Universes--and Its Implications

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