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What's the Problem With String Theory?
strength theory has been its perturbative definition yeah perhaps that's one can you explain what that means. There are an infinite number of ways of doing it and you can get whatever you want depending on how you do it so the whole program of starting at 10 dimensions and getting to four just kind of collapses out of a lack of any way to kind of get to where you want because you can get anything, he says.