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Mitchell_Porter comments on How about testing our ideas? - Less Wrong
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There is a string counterpart to the old idea of "spacetime foam", it's called a "Calabi-Yau crystal". The crystal fluctuates and branes are defects in the crystal. There are more things in string theory, sam0345, than are dreamt of in your philosophy.
That is just people waving their hands fast to distract you from noticing that not only do you have no idea what they are saying, they have no idea what they are saying either: Much like postmodernism, hence I described it as "postmodern physics"
Now you're being paranoid. This isn't a bluff, these aren't just words. Compactification on a Calabi-Yau is one of the basic ideas for how to get realistic physics out of string theory, and "crystal melting" is a model of its microscopic quantum geometry.
Yes, and there are so many Calabi-Yau manifolds that just knowing that the world is a ten-dimensional spacetime with six dimensions rolled up into some Calabi-Yau manifold yields hardly any falsifiable prediction at all.