The Measurement That Would Reveal The Universe As A Computer Simulation - Technology Review: The question that Beane and co ask is whether the lattice spacing imposes any kind of limitation on the physical processes we see in the universe...
They say that the lattice spacing imposes a fundamental limit on the energy that particles can have. That's because nothing can exist that is smaller than the lattice itself.
So if our cosmos is merely a simulation, there ought to be a cut off in the spectrum of high energy particles...
"The most striking feature...is that the angular distribution of the highest energy components would exhibit cubic symmetry in the rest frame of the lattice, deviating significantly from isotropy," they say.
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