“They have? When did this happen?”
*disclaimer* - Not a scientist, just reading the papers/summary.
They have found absolutely no evidence for the String theory. The String theory, a grand idea to the theory of ‘everything’, has gone several iterations. Its latest best hope is supersymmetry. The expectation was that LHC’s first run would have found experimental evidence for it... it did not. It basically ruled out based on the mass of Higgs Boson being 125 GeV. There is still some lingering hope for a not-so-simple-elegant-kind-of supersymmetry, as there is hope for anything, but the experimental science has gone past it. You have to realize that whatever we find/can find right now is basically explaining less than 10% of the universe. The standard model of particle physics does not even include gravity, among other things.
This is pretty exciting... the next LHC results will be in late summer/early fall... late last year they appear to have found a potentially new particle 6 times the higgs boson. They are currently running trillions of collisions to see if that was just a statistical fluke.
I’m betting ultimately on the beauty of the mathematics of M-Theory, and their energy term reductions convergent to relativity. What are the odds?