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“Two millennia later, it seems that Plato’s cave may be more than a metaphor. To turn his suggestion on its head, reality—not its mere shadow—may take place on a distant boundary surface, while everything we witness in the three common spatial dimensions is a projection of that faraway unfolding. Reality, that is, may be akin to a hologram.”
— Brian Greene, American theoretical physicist and string theorist, The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos, Knopf, 2011. (tnx johnsparker) ☞ See also: Brian Greene: The Search For Hidden Dimensions (video)
