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_Is Quantum Reality Analog after All?_
(http://www.scientificamerican.com/article.cfm?id=is-quantum-reality-analog-after-all)
Conventional wisdom says that quantum mechanics is a theory of
discreteness, describing a world of irreducible building blocks. It stands to
reason
that computersÿÿwhich process information in discrete chunksÿÿshould be able
to simulate nature fully, at least in principle. But it turns out that
certain asymmetries in particle physics cannot be discretized; they are
irreducibly continuous. In that case, says David Tong, author of "_Is Quantum
Reality Analog after All?_
(http://www.scientificamerican.com/article.cfm?id=is-quantum-reality-analog-after-all)
" in the December 2012 issue of
Scientific American, the world can never be fully simulated on a computer.
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