If we are all living in a simulation there may have been an extremely stressed cosmic sys admin racing to make sure we did not get into an overflow situation.
The simulation hypothesis is ridiculous in many other ways of course.
A discrete space-time would likely mean observable Lorentz-violations.
Before we thought that energy, mass and matter were completely continuous and that turned out to be wrong.
The Planck scale is the scale of lengths/times/etc that are around 1 in Planck units. This happens to be the scale roughly around which the quantum effects of gravity become significant. Since we do not have an accepted quantum theory of gravity, it's therefore the scale at which we cease to have an accepted physical theory.
There is no evidence to suggest that space is discrete at that scale. It's just the scale at which we have no accepted theory, and AFAIK no evidence to evaluate such a theory.
Bekenstein bound and "planckian discreteness".
Reality is most likely not composed of a regular tesselation of simple geometric shapes such as a cartesian voxel grid as that would introduce massive anisotropy. But, there is still theoretic evidence suggesting that spacetime is indeed discrete at the lowest level.
That is going to be a though one, at least direct measurements are pretty much ruled out if you consider that the plank length is about a quadrillion (yes, really 10^15) times smaller than the classical electron radius.
So, we will have to settle for indirect evidence and theoretical results.
But the way semi-serious people kick the idea around, sure. Pony up. I don't think that my religious beliefs submit to rigor, either. But I'm not here pushing something labeled as "religious beliefs" as a "hypothesis", either.
By the same token, if someone wants to call it the "Simulation Belief" in a religious sense, then I will lay by my dish.
What's the python package to get that ? :-)
That or integers were and we should have an natural number of fingers and toes.
Either just the positives or the positives and zero.