Okay, that's less likely. I'd still give it higher than 15% though. The holographic principle is very suggestive of this, for instance.

It's hard to know exactly what would count in order to make an estimate, since we don't yet know the actual laws of physics. It's obvious that "position observables, but farther away" would encode the regular type of alien, but the boundary between regular aliens and weird quantum aliens could easily blur as we learn more physics.