Authors
Pierrick Bourrat
Macquarie University
Abstract
The most consistent definition of fitness makes it a static property of organisms. However, this is not how fitness is used in many evolutionary models. In those models, fitness is permitted to vary with an organism’s circumstances. According to this second conception, fitness is dynamic. There is consequently tension between these two conceptions of fitness. One recently proposed solution suggests resorting to conditional properties. We argue, however, that this solution is unsatisfactory. Using a very simple model, we show that it can lead to incompatible fitness values and indecision about whether selection actually occurs.
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DOI 10.1007/s13194-021-00430-0
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References found in this work BETA

Adaptation and Evolutionary Theory.Robert N. Brandon - 1978 - Studies in History and Philosophy of Science Part A 9 (3):181.
The Propensity Interpretation of Fitness.Susan K. Mills & John H. Beatty - 1979 - Philosophy of Science 46 (2):263-286.
The Nature of Selection: Evolutionary Theory in Philosophical Focus.Elliott Sober - 1987 - British Journal for the Philosophy of Science 38 (3):397-399.
A New Foundation for the Propensity Interpretation of Fitness.Charles H. Pence & Grant Ramsey - 2013 - British Journal for the Philosophy of Science 64 (4):851-881.

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