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Sabine Hossenfelder
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Comments by "" (@kunibald128) on "New Theory Inspection: Is the Universe a Bubble? I had a look" video.
Indeed, as a model of the Universe, we don't need it to be expensive, as long as it is expansive!
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For the record, "Swiss cheese" models of the Universe do indeed exist, they are used to study the effects of inhomogeneities (compact mass concentrations within large voids) primarily on the propagation of light.
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