"What is needed is a precise mathematical model of the multiverse," says Deutsch. And now he's made one.
The key to Deutsch's model sounds peculiar. He treats the multiverse as if it were a quantum computer. Quantum computers exploit the strangeness of quantum systems-their ability to be in many states at once-to do certain kinds of calculation at ludicrously high speed. For example, they could quickly search huge databases that would take an ordinary computer the lifetime of the Universe. Although the hardware is still at a very basic stage, the theory of how quantum computers process information is well advanced.
neat. I wrote more on this here
via cdc
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