> The trio specifically considered the range of values of α permitted by those two principles in supersymmetric 10D universes. The two main problems with strin

> The trio specifically considered the range of values of α permitted by those two principles in supersymmetric 10D universes. The two main problems with string theory are supersymmetry and the fact that it requires 10 dimensions. This is a problem because we have no evidence for either of those things, and have to make up new physics to explain them away. So this paper says nothing more than string theory isn't inconsistent... with itself. Which it shouldn't be since the whole point of string theory was to come up with a consistent mathematical model that combines relativity and quantum mechanics.