Sunday, November 29, 2009

Semi-random Fact I was Subjected to Today...

"In string theory the number of false vacua is commonly quoted as 10500.[1] The large number of possibilities arises from different choices of Calabi-Yau manifolds and different values of generalized magnetic fluxes over different homology cycles. If one assumes that there is no structure in the space of vacua, the problem of finding one with a sufficiently small cosmological constant is NP complete[2], being a version of the subset sum problem."

- From Wikipedia, String Theory Landscape

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