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Life, “Artificial Life,” and Scientific Explanation

Published online by Cambridge University Press:  01 April 2022

Marc Lange
Marc Lange*
Affiliation:
Department of Philosophy University of California, Los Angeles
*
†Send reprint requests to the author, Department of Philosophy, Box 95145, University of California, Los Angeles, CA 90095-1451.
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Abstract

Recently, biologists and computer scientists who advocate the “strong thesis of artificial life” have argued that the distinction between life and nonlife is important and that certain computer software entities could be alive in the same sense as biological entities. These arguments have been challenged by Sober (1991). I address some of the questions about the rational reconstruction of biology that are suggested by these arguments: What is the relation between life and the “signs of life”? What work (if any) might the concept of “life” (over and above the “signs of life”) perform in biology? What turns on scientific disputes over the utility of this concept? To defend my answers to these questions, I compare “life” to certain other concepts used in science, and I examine historical episodes in which an entity's vitality was invoked to explain certain phenomena. I try to understand how these explanations could be illuminating even though they are not accompanied by any reductive definition of “life.”

Type
Research Article
Information
Philosophy of Science , Volume 63 , Issue 2 , June 1996 , pp. 225 - 244
Copyright
Copyright © 1996 by the Philosophy of Science Association

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