Thursday, May 01, 2003

Parallel Universes Fascinating article from Scientific American about parallel universes. Once the domain of science fiction, the idea of an essentially infinite number of universes is one that is looking increasingly plausible to many physicists. And it seems the theory that the universe as we know it is only one small part of a larger multiverse may even have some useful consequences for modern cosmology. Read the whole article here.

An interesting side issue here is that if parallel universes are real, then creationist arguments based on probability theory are effectively blown out of the water. It has recently become fashionable to argue that certain "anthropic coincidences" in the fundamental constants of our universe point to some intelligent designer responsible for our existence. But if our universe is only one of many universes, then every combination of fundamental constants will eventually be achieved just by chance alone.

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