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Astronomy and Cosmology
Cosmology
Exploring the Janus Universe: A Layperson's Guide
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[QUOTE="spacejunkie, post: 6053215, member: 545630"] The difference is that Poincare recurrences arise repeatedly in confined systems as long as enough time passes while a Janus point is an unique point in an unconfined system which goes to infinity. The idea is not so much that the arrow of time changes direction at the Janus point but that the emergence of the arrow of time always leads to the Janus point being in the past. This paper by the same authors is a little more readable than the one you posted:- Janus Points and Arrows of Time [URL]https://arxiv.org/abs/1604.03956[/URL] Barbour also has a laymans level book just published about the subject. [/QUOTE]
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Forums
Astronomy and Cosmology
Cosmology
Exploring the Janus Universe: A Layperson's Guide
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