Pre-big-bang black-hole remnants and the past low entropy
arXiv:1805.03224 · doi:10.3390/universe4110129
Abstract
Dark matter could be composed by black-hole remnants formed before the big-bang era in a bouncing cosmology. This hypothetical scenario has major implications on the issue of the arrow of time: it would upset a common attribution of past low entropy to the state of the geometry, and provide a concrete realisation to the perspectival interpretation of past low entropy.
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