Complexity Digest 2009.07 - 18

2009/03/27

Editor-in-Chief: Carlos Gershenson
Founding Editor: Gottfried Mayer

Evolution and the second law of thermodynamics, arXiv Bookmark and Share

Abstract: Skeptics of biological evolution often claim that evolution requires a decrease in entropy, giving rise to a conflict with the second law of thermodynamics. This argument is fallacious because it neglects the large increase in entropy provided by sunlight striking the Earth. A recent article provided a quantitative assessment of the entropies involved and showed explicitly that there is no conflict. That article rests on an unjustified assumption about the amount of entropy reduction involved in evolution. I present a refinement of the argument that does not rely on this assumption.