Review of Meyer, Stephen C. 2004. The origin of biological information and the higher taxonomic categories. Proceedings of the Biological Society of Washington 117(2):213-239.
by Alan Gishlick, Nick Matzke, and Wesley R. Elsberry
[The views and statements expressed here are our own and not necessarily those of NCSE or its supporters.]
“Intelligent design” (ID) advocate Stephen C. Meyer has produced a “review article” that folds the various lines of “intelligent design” antievolutionary argumentation into one lump. The article is published in the journal Proceedings of the Biological Society of Washington. We congratulate ID on finally getting an article in a peer-reviewed biology journal, a mere fifteen years after the publication of the 1989 ID textbook Of Pandas and People, a textbook aimed at inserting ID into public schools. It is gratifying to see the ID movement finally attempt to make their case to the only scientifically relevant group, professional biologists. This is therefore the beginning (not the end) of the review process for ID. Perhaps one day the scientific community will be convinced that ID is worthwhile. Only through this route – convincing the scientific community, a route already taken by plate tectonics, endosymbiosis, and other revolutionary scientific ideas – can ID earn a legitimate place in textbooks.
Unfortunately, the ID movement will likely ignore the above considerations about how scientific review actually works, and instead trumpet the paper from coast to coast as proving the scientific legitimacy of ID. Therefore, we would like to do our part in the review process by providing a preliminary evaluation of the claims made in Meyer’s paper. Given the scientific stakes, we may assume that Meyer, Program Director of the Discovery Institute‘s Center for Science and Culture, the major organization promoting ID, has put forward the best case that ID has to offer. Discouragingly, it appears that ID’s best case is not very good. We cannot review every problem with Meyer’s article in this initial post, but we would like to highlight some of the most serious mistakes. These include errors in facts and reasoning. Even more seriously, Meyer’s paper omits discussion or even citation of vast amounts of directly relevant work available in the scientific literature.
Summary of the paper
Meyer’s paper predictably follows the same pattern that has characterized “intelligent design” since its inception: deny the sufficiency of evolutionary processes to account for life’s history and diversity, then assert that an “intelligent designer” provides a better explanation. Although ID is discussed in the concluding section of the paper, there is no positive account of “intelligent design” presented, just as in all previous work on “intelligent design”. Just as a detective doesn’t have a case against someone without motive, means, and opportunity, ID doesn’t stand a scientific chance without some kind of model of what happened, how, and why. Only a reasonably detailed model could provide explanatory hypotheses that can be empirically tested. “An unknown intelligent designer did something, somewhere, somehow, for no apparent reason” is not a model.
Meyer’s paper, therefore, is almost entirely based on negative argument. He focuses upon the Cambrian explosion as an event he thinks that evolutionary biology is unable to account for. Meyer asserts that the Cambrian explosion represented an actual sudden origin of higher taxa; that these taxa (such as phyla) are “real” and not an artifact of human retrospective classification; and that morphological disparity coincides with phyletic categories. Meyer then argues that the origin of these phyla would require dramatic increases in biological “information,” namely new proteins and new genes (and some vaguer forms of “information” at higher levels of biological organization). He argues that genes/proteins are highly “complex” and “specified,” and that therefore the evolutionary origin of new genes is so improbable as to be effectively impossible. Meyer briefly considers and rejects several theories proposed within evolutionary biology that deal with macroevolutionary phenomena. Having rejected these, Meyer argues that ID is a better alternative explanation for the emergence of new taxa in the Cambrian explosion, based solely upon an analogy between “designs” in biology and the designs of human designers observed in everyday experience.
The mistakes and omissions in Meyer’s work are many and varied, and often layered on top of each other. Not every aspect of Meyer’s work can be addressed in this initial review, so we have chosen several of Meyer’s major claims to assess. Among these, we will take up the Cambrian explosion and its relation to paleontology and systematics. We will examine Meyer’s negative arguments concerning evolutionary theories and the origin of biological “information” in the form of genes.
An expanded critique of this paper is in preparation.