I think that doesn't work, because we don't know how to represent and predict the state of a cloud of elementary particles to that level of detail. You could ar

I think that doesn't work, because we don't know how to represent and predict the state of a cloud of elementary particles to that level of detail. You could argue that the mathematics proves that this is possible in principle, but I counter that you have no idea whether the theory extrapolates to such situations in real life because it is way out of humanity's compute budget to test. Like the rest of physics, I expect new regimes would come with new phenomena that we don't understand.