Surely this is a very significant result, the equivalent of the Michelson
Morley for (relatively large scale) quantisation of space-time? I believe
this kills LQG, but what about CDT, spin foams, and (of course) M theory?
Does this kill the idea of compactification, or are those Calabi-Yau
manifolds either too small, or do they not have an influence on high energy
photons? If this prevents relativity/quantum unification at the Planck
scale, this surely makes the split between them even more baffling! (Maybe
it's a bug in the Matrix software? :)

All this and the Higgs. Suddenly physics has become exciting again!

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