And that is assuming that the high-energy limit is the fundamental scale. This is plausible, but by no means necessary. Maybe the truly fundamental scale is at

And that is assuming that the high-energy limit is the fundamental scale. This is plausible, but by no means necessary. Maybe the truly fundamental scale is at an intermediate energy - and if you go past this to ever higher energies, you get more and more emergent artifacts, just like you get at lower energies. We'll probably have to part with some basic assumption (like the one above) if we want to make further progress in fundamental physics.