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The universe as quantum computer
This article reviews the history of digital computation, and investigates
just how far the concept of computation can be taken. In particular, I address
the question of whether the universe itself is in fact a giant computer, and if
so, just what kind of computer it is. I will show that the universe can be
regarded as a giant quantum computer. The quantum computational model of the
universe explains a variety of observed phenomena not encompassed by the
ordinary laws of physics. In particular, the model shows that the the quantum
computational universe automatically gives rise to a mix of randomness and
order, and to both simple and complex systems.Comment: 16 pages, LaTe
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