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May28-05, 03:22 PM
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wolram's Avatar
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Space Tiger.

Standard cosmology doesn't actually need any specific particles to exist, but it does need a WIMP. Any WIMP will do, however. The only reason we look for specific particles (like the Higgs boson) is to test the theories of particle physics.

So there "has", to be a WIMP, and "not", a modification to GR.