All of our sense tell us that we exist in three dimensions, and yet the mathematics around black holes seems to suggest that all information can be encapsulated in only two dimensions. There was a theory I read about year ago, something about a "holographic universe" which put forth the idea that we technically are two dimensional, existing on the walls of the universe, but our senses interpret this as three-dimensional space.

The point being -- we already ready know it's a fact that we cannot always trust our senses, and that our senses can lie to us when struggling to make sense of the information. If we can't even be certain that we actually exist in three dimensions then you can't really discount the "possibility" that our conscience might be linked to something we're not aware of. Hell there are STILL people who claim gravity and a spherical Earth aren't real.