Pre-big-bang black-hole remnants and the past low entropy
classification
🌀 gr-qc
physics.hist-ph
keywords
entropypastblack-holeremnantsarrowattributionbeforebig-bang
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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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