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What if none of this is real? The theory that says we’re living in a simulation

What if reality is not reality at all, but a simulation so advanced that no one inside it could ever tell the difference?
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Are we a simulation? String theory, infinite universes and the search for ultimate reality

What if our 3D reality is a projection from a 2D surface? Part 2 dives deeper into string theory's claim of 10 hidden dimensions and the radical idea of an infinite cosmos where duplicate Earths and ...