[WindyLakeReturn]

Isn't the actual simulation argument based on information density being bounded in a way that doesn't make sense. Something like we would think information density should be bounded by 3d. You have twice as much 3d space, you can hold twice as much information. But the physics argument (and I think it is still theoretical physics) is that it is actually bounded by the 2D surface area of that space, not the 3D volume. I forget the details of how this ties into simulation.

I also think there is some math in general relativity that works out much better if we assume 3D space is actually the 3d-surface area equivalent of a 4d space (and not the 4d space time), which makes us more like a hologram of 4d space. But this is another one where I forget most of the details that actually matter.

These combine give us the hologram simulation that pops up in pop culture from time to time, but what you read about in any blog or news article has nothing to do with the actual math and science behind the theories/hypothesis/what ifs.