"I agree. They nest, you see, and all of them contain this entire multiverse, as far as anybody knows. Except this one. It nests inside the others but it contains just one universe. Zero." "And what's special about that universe?" "We can't travel to it or communicate with it. Other than that, we don't know. Because we can't travel to it or communicate with it. "There's supposed to be teleportation. Not the way we hack it, with deconstruction and reconstruction by nanobots; I mean true teleportation. And FTL communications. But they're walled off from us. Why? Well, this is why. Behind this
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