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Entropy 2007, 9(2), 42-57; doi:10.3390/e9020042

Probability as a Physical Motive

Spatial Information Research Centre, University of Otago, Dunedin, New Zealand
Received: 1 January 2007 / Accepted: 25 January 2007 / Published: 25 April 2007
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Recent theoretical progress in nonequilibrium thermodynamics, linking thephysical principle of Maximum Entropy Production (“MEP”) to the information-theoretical“MaxEnt” principle of scientific inference, together with conjectures from theoreticalphysics that there may be no fundamental causal laws but only probabilities for physicalprocesses, and from evolutionary theory that biological systems expand “the adjacentpossible” as rapidly as possible, all lend credence to the proposition that probability shouldbe recognized as a fundamental physical motive. It is further proposed that spatial order andtemporal order are two aspects of the same thing, and that this is the essence of the secondlaw of thermodynamics.
Keywords: Entropy; probability; second law; physical law; spatial order; evolution. Entropy; probability; second law; physical law; spatial order; evolution.
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Martin, P. Probability as a Physical Motive. Entropy 2007, 9, 42-57.

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