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Physical Universality, State-Dependent Dynamical Laws and Open-Ended Novelty

Eigentimes and Very Slow Processes

Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen ∅, Denmark
Department of Applied Mathematics, The University of Western Ontario, London, ON N6A 5B7, Canada
Author to whom correspondence should be addressed.
Entropy 2017, 19(9), 492;
Received: 1 July 2017 / Revised: 28 August 2017 / Accepted: 8 September 2017 / Published: 14 September 2017
(This article belongs to the Special Issue Entropy, Time and Evolution)
We investigate the importance of the time and length scales at play in our descriptions of Nature. What can we observe at the atomic scale, at the laboratory (human) scale, and at the galactic scale? Which variables make sense? For every scale we wish to understand we need a set of variables which are linked through closed equations, i.e., everything can meaningfully be described in terms of those variables without the need to investigate other scales. Examples from physics, chemistry, and evolution are presented. View Full-Text
Keywords: very slow processes; eigentimes; evolution; closure; observation time very slow processes; eigentimes; evolution; closure; observation time
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MDPI and ACS Style

Andresen, B.; Essex, C. Eigentimes and Very Slow Processes. Entropy 2017, 19, 492.

AMA Style

Andresen B, Essex C. Eigentimes and Very Slow Processes. Entropy. 2017; 19(9):492.

Chicago/Turabian Style

Andresen, Bjarne, and Christopher Essex. 2017. "Eigentimes and Very Slow Processes" Entropy 19, no. 9: 492.

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