Holographic principle - Wikipedia, the free encyclopedia
Probably my favorite science theory.
It was born out of the idea that information cannot be destroyed and the study of black holes (Hawking). For the longest time, Hawking maintained that information was lost (destroyed) in a black hole. However, later theoretical physicists, and Hawking eventually reversed himself (agreed), proved that such was not the case. The information of an object/thing/energy was stored or smeared across the surface of the black hole (aka the event horizon). Thus, information was essentially 2d even though reality appears 3d to us.
If this theoretical interpretation holds, and one applies it to the universe, reality would be nothing but a 3d projection of 2d information stored on the surface of the universe.