SciAm Responds to Stein's Expelled

Michael Shermer, "Expelled: No Intelligence Allowed--Ben Stein Launches a Science-free Attack on Darwin"

Anyone who thinks that scientists do not question Darwinism has never been to an evolutionary conference. At the World Summit on Evolution held in the Galapagos Islands during June 2005, for example, I witnessed a scientific theory rich in controversy and disputation. Paleontologist William Schopf of the University of California, Los Angeles, for instance, explained that "We know the overall sequence of life's origin, that the origin of life was early, microbial and unicellular, and that an RNA world preceded today's DNA–protein world." He openly admitted, however, "We do not know the precise environments of the early earth in which these events occurred; we do not know the exact chemistry of some of the important chemical reactions that led to life; and we do not have any knowledge of life in a pre-RNA world."

Stanford University biologist Joan Roughgarden declared that Darwin's theory of sexual selection (a specific type of natural selection) is wrong in its claim that females choose mates who are more attractive and well-armed. Calling neo-Darwinians "bullies," the University of Massachusetts Amherst biologist Lynn Margulis pronounced that "neo-Darwinism is dead" and, echoing Darwin, she said, "It was like confessing a murder when I discovered I was not a neo-Darwinist." Why? Because, Margulis explained, "Random changes in DNA alone do not lead to speciation. Symbiogenesis—the appearance of new behaviors, tissues, organs, organ systems, physiologies or species as a result of symbiont interaction—is the major source of evolutionary novelty in eukaryotes: animals, plants and fungi."

Finally, Cornell University evolutionary theorist William Provine (featured in Expelled) presented 11 problems with evolutionary theory, including: "Natural selection does not shape an adaptation or cause a gene to spread over a population or really do anything at all. It is instead the result of specific causes: hereditary changes, developmental causes, ecological causes and demography. Natural selection is the result of these causes, not a cause that is by itself. It is not a mechanism."

Despite this public questioning of Darwinism (and neo-Darwinism), which I reported on in Scientific American, Schopf, Roughgarden, Margulis and Provine have not been persecuted, shunned, fired or even Expelled. Why? Because they are doing science, not religion. It is perfectly okay to question Darwinism (or any other "-ism" in science), as long as there is a way to test your challenge. Intelligent design creationists, by contrast, have no interest in doing science at all. In the words of mathematician and philosopher William Dembski of Southwestern Baptist Theological Seminary and a key witness in Stein's prosecution of evolution, from a 2000 speech at the National Religious Broadcasters convention in Anaheim, Calif.: "Intelligent design opens the whole possibility of us being created in the image of a benevolent God…. And if there's anything that I think has blocked the growth of Christ as the free reign of the spirit and people accepting the Scripture and Jesus Christ, it is the Darwinian naturalistic view."

(Much appreciation to Paul Krugman.)