Saturday, November 26, 2011

The Case for Parallel Universes

Why the multiverse, crazy as it sounds, is a solid scientific idea

In the August issue of Scientific American, cosmologist George Ellis describes why he's skeptical about the concept of parallel universes. Here, multiverse proponents Alexander Vilenkin? and Max Tegmark? offer counterpoints, explaining why the multiverse would account for so many features of our universe—and how it might be tested:

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