The Bayesian Second Law of Thermodynamics · HackerPapers discussions

The Bayesian Second Law of Thermodynamics — mentioned by Vecr

Mon, 21 Oct 2024 13:12:30 GMT

https://arxiv.org/abs/1508.02421v1 https://arxiv.org/abs/1508.02421v3 (updated, 2017) They claim to fix the criticisms, see the section "The Bayesian arrow of time." Who knows how well they did though. As far as I can tell they're still making impossible assumptions, because certain Bayesian problems can't be calculated under a certain amount of energy, and some can't be calculated at all while embedded in spacetime (excepting time travel, and sometimes even then). I think it's necessary to increase (on expectation) the entropy in a closed system when measuring, unless you take measuring to…

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The Bayesian Second Law of Thermodynamics — mentioned by riemannzeta

Tue, 22 Aug 2023 19:37:26 GMT

KL divergence has also been used to generalize the second law of thermodynamics for systems far from equilibrium: https://arxiv.org/abs/1508.02421 And to explain the relationship between the rate of evolution and evolutionary fitness: https://math.ucr.edu/home/baez/bio_asu/bio_asu_web.pdf The connection between all of these manifestations of KL divergence is that a system far from equilibrium contains more information (in the Shannon sense) than a system in equilibirum. That "excess information" is what drives fitness within some environment.

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The Bayesian Second Law of Thermodynamics — HN submission

Sat, 05 Mar 2016 17:33:10 GMT

The Bayesian Second Law of Thermodynamics

3 points; 0 discussion replies on HN. Paper and source history. A submission is not an endorsement.