Researchers from the University of Washington and Harvard University have turned up some interesting findings about possible realities based on math modeling the beginnings of the Universe.
Andreas Karch (UW) and Lisa Randall from Harvard set out to model how the Universe was arranged right after the big bang, and then watch how the cosmos evolved as it expanded and diluted. The only assumptions they made were that it started with a generally smooth configuration, with numerous structures - called "branes" (membranes) - that existed in various spatial dimensions from one to nine.
The researchers found that as the cosmos evolved and the branes diluted, the branes that survived displayed three dimensions or seven dimensions. They believe the way our universe started and then diluted as it expanded - called the relaxation principle - favored formation of three- and seven-dimensional realities.
"That's what comes out when you do the math," said Karch, author of the paper that appears in Physical Review Letters. "Other realities, either three- or seven-dimensional, could be hidden from our perception in the Universe. There are regions that feel 3D. There are regions that feel 5D. There are regions that feel 9D. These extra dimensions are infinitely large. We just happen to be in a place that feels 3D to us," he added.
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