On Bayesian mechanics: a physics of and by beliefs

• Published in: Interface focus Vol. 13; no. 3; p. 20220029
• Main Authors: Ramstead, Maxwell J. D., Sakthivadivel, Dalton A. R., Heins, Conor, Koudahl, Magnus, Millidge, Beren, Da Costa, Lancelot, Klein, Brennan, Friston, Karl J.
• Format: Journal Article
• Language: English
• Published: England The Royal Society 14.04.2023
• Subjects: gauge theory; maximum entropy; free energy principle; active inference; information geometry; Bayesian mechanics

The aim of this paper is to introduce a field of study that has emerged over the last decade, called Bayesian mechanics. Bayesian mechanics is a probabilistic mechanics, comprising tools that enable us to model systems endowed with a particular partition (i.e. into particles), where the internal sta...