To them, I said, the truth would be literally nothing but the shadows of the images.
The only reality or truth would be the shadows, for they have seen nothing and have no knowledge of anything else. If somebody were to challenge this belief it is likely that the prisoners would not readily believe the challenger.
Interestingly, the idea behind Plato’s allegory of the cave has received some justification from contemporary theoretical physics. As reported in Nature, simulations in 2013 have lent support to the theory that the universe as we know it is a kind of holographic projection.
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