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Universe
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Astronomers made the stunning discovery that the expansion of the universe is actually speeding up. The universe is getting bigger and bigger faster and faster driven by a mysterious repulsive force called dark energy.
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We don't know what dark energy is, but the best idea is that it's the energy of empty space itself, the energy of the vacuum.
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It's been estimated, in fact, that there are ten to the five hundred different versions of string theory. Each one would describe a different universe with different laws of physics.
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In most of the multiverse, dark energy is so strong that the universe gets torn apart, or the Higgs field is so weak that no atoms can form.
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In most of the multiverse, there is nothing, and we live in one of the few places where the laws of physics allow there to be something.
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We can't test the idea of the multiverse. We can't access these other universes, so there's no way of knowing whether they're there or not.
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We think about the world in all the ways that we experience it. We think visually, we think in sound, we think kinesthetically. We think in abstract terms, we think in movement.
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