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This question is inspired by another question here on stackexchange on the mathematical universe hypothesis. Someone pointed out only computable structures are admissible, and all possible computable structures exist. Isn't this compatible with Schidhuber's idea of a computer program multithreading over all possible programs? Can this possibly be the underlying reality? If we are in one thread, we will be unaware of all the other threads. Isn't that so neat?

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Generally, questions about any sort of "underlying reality" are philosophical in nature, not physical, and thus are off topic for this site (unless you can frame them in terms of experimentally testable assertions). You might want to check whether this would fit on Philosophy. – David Zaslavsky♦ Oct 14 '11 at 23:00
My informal understanding of quantum mechanics says a) the universe is continually bifurcating into an uncountable number of parallel universes, and b) they are not independent, they interfere, just like waves, so only probable ones can be manifest. – Mike Dunlavey Oct 15 '11 at 0:32

closed as off topic by David Zaslavsky♦ Oct 14 '11 at 22:58

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