Online research in philosophy

Intelligent design is the science that studies how to detect intelligence. Recall astronomer Carl Sagan’s novel Contact about the search for extraterrestrial intelligence (or SETI). Sagan based the SETI researchers’ methods of design detection on scientific practice. Real-life SETI researchers have thus far failed to detect designed signals from distant space. But if they encountered such a signal, as the astronomers in Sagan’s novel did, they too would infer design. Intelligent design research currently focuses on developing reliable methods of design detection and then applying these methods, especially to biological systems.

Did God create life? Or did life arise via naturalistic processes, along the lines of random mutation and natural selection as suggested by Darwin? Intelligent design proponents attempt to use William Dembski’s design inference to argue that the existence of intelligent life is due to design. I will argue that the design inference is flawed, because it does not take into account the fact that the universe is spatially infinite.

For many natural scientists, design, conceived as the action of an intelligent agent, is not a fundamental creative force in nature. Rather, material mechanisms, characterized by chance and necessity and ruled by unbroken laws, are thought sufficient to do all nature’s creating. Darwin’s theory epitomizes this rejection of design.

Intelligent Design creationism is often criticized for failing to be science because it falls afoul of some demarcation criterion between science and non-science. This paper argues that this objection to Intelligent Design is misplaced because it assumes that a consistent non-theological characterization of Intelligent Design is possible. In contrast, it argues that, if Intelligent Design is taken to be non-theological doctrine, it is not intelligible. Consequently, a demarcation criterion cannot be used to judge its status. This position has the added advantage of providing reasons to reject Intelligent Design creationism without invoking potentially philosophically controversial demarcation criteria.

In his recent anthology, Intelligent Design Creationism and Its Critics, Robert Pennock continues his attack on what he considers to be the pseudoscience of Intelligent Design Theory. In this critical review, I discuss the main issues in the debate. Although the rhetoric is often heavy and the articles are intentionally stacked against Intelligent Design, there are many interesting topics in the philosophy of science to be found. I conclude that, contra Pennock, there is nothing intrinsically unscientific about Intelligent Design. At this stage, however, it remains more of a provocative idea than a research program. Whether design theorists can bridge this gap is still very much in question. In any case, the debate serves as a modern case study for such classic problems as the nature of scientific explanations, theory change, the demarcation problem, and the role of metaphysical assumptions in the development of science.

Many things in the natural world work so well that they seem to have been designed. But by what? Could nature itself, by processes including those of evolution, be the designer? Or must their complex structure and function be attributed to some intelligent designer or God? Is natural design compatible with intelligent design? How good is the argument from the presence of design to an intelligent designer? And if we could legitimately infer the probable existence of an intelligent designer from the presence of design in the natural world, what could we then infer about that designer's nature?

Intelligent design—the idea that a designing intelligence plays a substantive and empirically significant role in the natural world—no longer sits easily in our intellectual environment. Science rejects it for invoking an unnecessary teleology. Philosophy rejects it for committing an argument from ignorance. And theology rejects it for, as Edward Oakes contends, making the task of theodicy impossible.1 I want in this lecture to address all these concerns but especially the last. For many thinkers, particularly religious believers, intelligent design exacerbates the problem of natural evil—intelligent design makes natural evil not an accident of natural history or a price exacted by evolution or a necessary consequence of creation’s freedom but an outcome fully intended by a sadistic designer. Or, as Robert Russell put it to me on the PBS program Uncommon Knowledge, “The notion of intelligent design is incoherent because it’s either a natural cause, in which case you don’t go anywhere, or it’s a divine cause, in which case you don’t have the biblical God.”2 The biblical God, presumably, would not design the rabies virus, the bubonic plague bacterium, or the mosquito.

Proponents of intelligent design have been remarkably successful, at least in the United States, in creating a cultural movement. They have also been remarkably successful at exasperating a scientific and intellectual world that dismisses intelligent design as the latest incarnation of creationism—more sophisticated than previous incarnations to be sure, but with many of the old faults. In this paper I want to focus on intelligent design’s merits as an intellectual project. I will show that the questions it raises are legitimate and cannot be dismissed on a priori grounds. Having demonstrated that intelligent design constitutes a valid intellectual project, I want next to review intelligent design’s progress to date. Finally, I will indicate certain milestones that intelligent design needs to achieve before it can expect broad recognition from the scientific community that it is making a fruitful contribution to our understanding of the natural world.

Anyone new to the debate over intelligent design encounters many conflicting claims about whether it is science. A Washington Post front page story (Slevin 2005) asserts that intelligent design is “not science [but] politics.” In that same story, Barry Lynn, the director of Americans United for Separation of Church and State, claims that intelligent design is merely “a veneer over a certain theological message,” thus identifying intelligent design not with science but with religion. In a related vein, University of Copenhagen philosopher Jakob Wolf (2004) argues that intelligent design is not science but philosophy (albeit a philosophy useful for understanding science). And finally, proponents of intelligent design argue that it is indeed science (e.g., Dembski 2002a, ch. 6). Who is right?

I was recently on an NPR program with skeptic Michael Shermer and paleontologist Donald Prothero to discuss intelligent design. As the discussion unfolded, it became clear that they were using the phrase "intelligent design" in a way quite different from how the emerging intelligent design community is using it.