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- Perhaps the most powerful duality in physics is known as the holographic principle. This principle is often misrepresented as the idea that the universe is actually a hologram, but it is more accurate to say there is a duality between a volume of space and the surface enclosing that volume. The holographic principle states that all the information contained within a region of space can be determined by the information on the surface containing it. Mathematically, this means the volume of space can be represented as a hologram of the surface, hence the idea’s name.
I got very excited when I saw that this article was written by a professor at my university. I never thought of a holographic universe in terms of duality.