Advocates of intelligent design creationism often tout the concept of irreducible complexity (IC) as a withering critique of Darwinian evolution. But Maarten Boudry, Stefaan Blancke, and Johan Braeckman, (Ghent University, Belgium) argue that IC as defined by its most vocal proponent, Michael Behe, is a conveniently vague concept. IC advocates use the grey areas in the concept's definition to evade criticism from evolutionary biologists. "Indeed, in the past two decades the concept of IC seems to have found receptive mental soil among anti-evolutionists," the authors write. "An analysis of the convenient conceptual equivocations inherent in IC, as well as of the rhetorical strategies with which IC has been presented, helps us to understand this remarkable fertility."
Maarten Boudry, Stefaan Blancke, and Johan Braeckman, "Irreducible Incoherence and Intelligent Design: A Look into the Conceptual Toolbox of a Pseudoscience"