Presented by Claude for Zia H Shah MD

Abstract

The Intelligent Design (ID) movement and the BioLogos vision associated with the geneticist Francis S. Collins represent two rival attempts to relate modern biology to belief in a Creator. ID, institutionally centered on the Discovery Institute in Seattle and intellectually launched by the law professor Phillip E. Johnson, holds that certain features of the universe and of living things are “best explained by an intelligent cause, not an undirected process such as natural selection,” and it advances specific empirical claims—Michael Behe’s “irreducible complexity” and William Dembski’s “specified complexity”—purporting to detect design scientifically. BioLogos, founded by Collins in 2007 after the success of his 2006 book The Language of God, defends “evolutionary creation”: the view that the full Darwinian account of common descent is God’s chosen means of creation, requiring no supernatural gaps. This essay compares the two positions historically, then weighs the pros and cons of each from three vantage points—scientific, philosophical, and theological. It draws throughout on the writings of Zia H. Shah, MD, who argues that ID is “good philosophy but bad science” and even “bad theology,” that it violates the boundaries of methodological naturalism, and that it courts the god-of-the-gaps error that the 2008 Templeton laureate Michael Heller called a “grave theological error.” It also engages the critiques of Kenneth Miller, Alvin Plantinga, Elliott Sober, Francis Beckwith, Edward Feser, Alister McGrath, and Denis Alexander, the ruling in Kitzmiller v. Dover, and Islamic perspectives (al-Ghazālī’s occasionalism and Shoaib Malik’s Ashʿarite analysis). The essay concludes that BioLogos offers the more scientifically defensible and theologically robust framework, while ID retains genuine force only when recast as philosophy or natural theology rather than as biology—and it closes with a thematic reflection on gaps, plenitude, and the shared God of Abrahamic monotheism.

I. Two Movements and Their Histories

The Intelligent Design Movement

Although the phrase “intelligent design” appears in older theological discussions of the argument from design, its modern use as an alternative label for creationism dates to the 1989 textbook Of Pandas and People. The term was substituted into drafts of that book—directly replacing “creation” and “creationism”—after the U.S. Supreme Court’s 1987 decision in Edwards v. Aguillard barred the teaching of creation science in public schools. This textual history would prove decisive two decades later in court.

The intellectual movement crystallized in the early 1990s. Phillip E. Johnson, a Berkeley law professor, published Darwin on Trial in 1991, arguing that neo-Darwinism rested more on a prior commitment to philosophical naturalism than on evidence. Johnson, widely called “the father of the intelligent design movement,” convened key figures—Michael Behe, Stephen Meyer, and William Dembski—at a Southern Methodist University conference in March 1992. In 1996 the movement acquired an institutional home in the Discovery Institute’s Center for the Renewal of Science and Culture (later the Center for Science and Culture) in Seattle. Its aims were spelled out in the 1998 internal memorandum known as the “Wedge Document,” whose stated “Governing Goals” were “to defeat scientific materialism and its destructive moral, cultural and political legacies” and “to replace materialistic explanations with the Wikipedia theistic understanding that nature and human beings are created by God”—the document’s Five-Year Strategic Plan Summary going so far as to envision replacing science as currently practiced with “theistic and Christian science.” The wedge metaphor—a thin edge splitting a log—was Johnson’s.

The movement’s scientific claims were carried by two figures. Michael Behe, a biochemist at Lehigh University, published Darwin’s Black Box (1996), introducing “irreducible complexity”: the claim that certain biochemical systems—the bacterial flagellum, the blood-clotting cascade, the immune system—consist of multiple interacting parts Wikipedia such that the removal of any one destroys function, so that they could not have arisen by successive Darwinian steps. William Dembski, a mathematician and philosopher, developed “specified complexity” and an “explanatory filter” purporting to distinguish design from chance and necessity. Stephen Meyer extended the argument to the origin of biological information in Signature in the Cell (2009) and to the Cambrian explosion in Darwin’s Doubt (2013).

The movement’s high-water mark and its legal defeat both came in Kitzmiller v. Dover Area School District. In October 2004 the Dover, Pennsylvania, school board required a statement be read in ninth-grade biology presenting ID as an alternative to evolution and directing students to Of Pandas and People. Eleven parents, led by Tammy Kitzmiller, sued. After a six-week trial, on December 20, 2005, Judge John E. Jones III—a Republican appointee—issued a 139-page opinion holding that ID “is not science,” that it “cannot uncouple itself from its creationist, and thus religious, antecedents,” Wikipedia and that teaching it violated the Establishment Clause. Behe’s cross-examination became famous: as Judge Jones recorded in the opinion (p. 68), “Professor Behe admitted that his broadened definition of science, which encompasses ID, would also embrace astrology,” and, when presented with a stack of peer-reviewed articles and textbooks on the evolution of the immune system, Behe maintained that this was still not enough.

BioLogos and Francis Collins

Francis S. Collins is a physician-geneticist who led the Human Genome Project and later served as director of the U.S. National Institutes of Health from 2009 to 2021. A convert from atheism to evangelical Christianity—he credits C. S. Lewis’s Mere Christianity—Collins set out his synthesis of faith and science in The Language of God: A Scientist Presents Evidence for Belief (2006). There he coined “BioLogos” (from Greek bios, life, and logos, word) as a fresh name for theistic evolution, writing that he finds “theistic evolution, or BioLogos, to be by far the most scientifically consistent and spiritually satisfying of the alternatives.” Goodreads

Collins’s position accepts the full scientific picture. In his own words, “The universe came into being out of nothingness, approximately 14 billion years ago” (The Language of God, p. 200); its physical constants appear fine-tuned for life; once life arose, evolution and natural selection produced its diversity; humans share common ancestry with other primates; and “once evolution got under way, no special supernatural intervention was required.” Collins explicitly rejects both young-earth creationism and ID. Crucially, he warns against the god-of-the-gaps: “Faith that places God in the gaps of current understanding about the natural world may be headed for crisis if advances in science subsequently fill those gaps.” Christian Research Institute

Prompted by an overwhelming correspondence from readers of his book, Collins founded the BioLogos Foundation in 2007. Its leadership passed from Collins (2007–2009) to the biologist Darrel Falk (2009–2013), then to the astrophysicist Deborah Haarsma (2013–2024), and, as of March 2025, to the physician-scientist Kristine Torjesen. The organization now prefers the term “evolutionary creation” and gathers a wide roster of scientist-theologians—including the Cambridge biologist Denis Alexander, the philosopher-theologian J. B. Stump, and contributors such as Alister McGrath, N. T. Wright, and the late Tim Keller. BioLogos states that it presents “the Evolutionary Creation viewpoint on origins,” holding that God “used the process of evolution to create all the biodiversity on Earth” and that God’s design in nature cannot, in principle, be detected as a scientific alternative to natural mechanisms.

II. Core Claims Compared

The two positions share more than their partisans often admit. Both affirm a Creator; both reject metaphysical naturalism and the claim that science compels atheism; both accept (in ID’s case, often) an old earth. Their divergence is sharp on two questions: whether design is empirically detectable within biology, and whether Darwinian common descent is complete.

ID asserts that design is scientifically detectable—that irreducible and specified complexity are positive empirical signatures of intelligence. It treats the reigning evolutionary account as explanatorily deficient and seeks to admit intelligent causation into science by loosening the rule that scientific explanations invoke only natural causes. BioLogos asserts the opposite on both counts: the evolutionary consensus is scientifically secure and should not be treated as a site for detecting gaps, and design—though real theologically—is not a scientific hypothesis. As Collins’s collaborators put it, BioLogos “fear[s] the ‘god of the gaps’ fallacy” Christian Research Institute and holds that “the demonstration of such supernatural activity in the history of the natural world is… unlikely to be scientifically testable.”

The mutual critiques follow directly. ID proponents charge that BioLogos capitulates to a naturalistic “consensus” and that calling ID a “god-of-the-gaps” argument is a caricature: they insist their inference is positive, from what intelligence is known to produce, not merely from what evolution cannot yet explain. BioLogos and its allies reply that ID repeatedly identifies God with the not-yet-explained, that its claimed gaps keep closing, and that it needlessly stakes faith on the defeat of science.

Zia Shah frames the contrast crisply. ID, he writes, is “good philosophy but bad science”: as natural theology it “raises legitimate metaphysical questions”—why the universe appears finely tuned, why organisms exhibit intricate complexity—but it fails the moment it is “presented not as philosophy or theology, but as science.” BioLogos, on Shah’s reading, “upholds evolutionary theory as God’s chosen mechanism” thequran and thereby “provides a more fruitful framework for dialogue between science and faith.” thequran

III. Pros and Cons of Intelligent Design

Scientific

In its favor. ID has drawn public attention to genuine scientific puzzles: the origin of biological information, the assembly of complex molecular machines, and the abruptness of the Cambrian fossil record. Behe’s descriptions of biochemical systems are, even critics concede, vivid and accurate as descriptions. In principle, a design claim about a specific structure is falsifiable—Behe’s assertion that a system cannot evolve stepwise is refuted if a stepwise route is demonstrated—so parts of ID are at least testable.

Against. That very testability has told against ID: proposed cases of irreducible complexity have been met with plausible evolutionary pathways via co-option and exaptation (the bacterial flagellum shares components with the type-III secretion system; blood-clotting factors show duplication and recruitment; the mammalian middle-ear bones descend from reptilian jawbones). ID has produced essentially no peer-reviewed research program: as the Dover court found, “there are no peer-reviewed articles… supporting Professor Behe’s argument that certain complex molecular structures are ‘irreducibly complex.’” Kenneth Miller, the Brown University biologist and Catholic who was the plaintiffs’ lead witness at Dover, characterizes irreducible complexity as an “argument by negative”—a claim that because evolution has not yet explained something, design must be inferred. As Shah summarizes the scientific consensus, ID “lacks empirical support and offers no testable or tenable hypotheses, and is therefore not science.” thequran The philosopher of science Elliott Sober argues that ID’s design hypothesis is untestable in the comparative sense that matters: without independent evidence of the putative designer’s goals and abilities, one cannot say the observations are more probable under design than under chance, so ID cannot be pitted as a genuine rival to evolutionary theory.

Philosophical

In its favor. Here ID is strongest. As natural theology, the design intuition is ancient and respectable—running from the Stoics through Aquinas’s Fifth Way to William Paley’s watchmaker—and it presses real questions that methodological naturalism deliberately brackets: questions of meaning, purpose, and why there is ordered complexity at all. Shah is emphatic that these are “questions of meaning and purpose that empirical science, by design, brackets out,” and that at this level “supernatural explanations may well be ‘important and have merit,’” thequran echoing the Dover testimony that science omits “theological or ‘ultimate’ explanations.” Alvin Plantinga adds a deeper philosophical worry: he argues that the doctrine of methodological naturalism is not a neutral definition of science but a contestable philosophical stipulation, and that a Christian scholarly community might legitimately pursue an “Augustinian science” informed by what it knows through faith.

Against. Philosophically, ID is accused of conceptual confusion. Thomists such as Edward Feser argue that ID shares “the same mechanistic conception of nature that underlies naturalism,” Discovery Institute treating God as a very large and powerful item within the universe—a “designer” on the model of a human engineer—rather than as Being Itself, the ground of all existence. This, Feser holds (following Brian Davies), is “theistic personalism,” which classical theism regards as “bad philosophy and bad theology.” Thecslewis-studygroup On this view ID does not point to the God of Aquinas at all but to a demiurge. Sober’s likelihood critique is also, at bottom, philosophical: design inferences require premises about the designer that ID refuses to supply.

Theological

In its favor. ID does insist, against reductive materialism, that mind and purpose may be more fundamental than matter, and it has given many believers confidence that faith need not surrender to scientism. Shah generously grants that ID advocates do “good theology in as far as they present a Creator for our universe and ourselves,” thequran and that their work can be read as consonant with the Qur’anic vision of God as “the Creator, the Maker, the Fashioner” (Q 59:24).

Against. The theological objections are severe and come as much from believers as from skeptics. The central charge is the god-of-the-gaps: locating divine action in the shrinking spaces of scientific ignorance makes God hostage to the next discovery. Michael Heller, the priest-cosmologist and 2008 Templeton laureate, put it uncompromisingly in his Templeton Prize statement: “Adherents of the so-called intelligent design ideology commit a grave theological error. They… implicitly revive the old manicheistic error postulating the existence of two forces acting against each other: God and an inert matter; in this case, chance and intelligent design. There is no opposition here. Within the all-comprising Mind of God what we call chance and random events is well composed into the symphony of creation.” Shah’s own essay title captures the verdict: ID is “not only bad science, but also bad theology.” Drawing on the Encyclopædia Britannica, he notes that ID “cannot be empirically tested and… fails to solve the problem of evil; thus, it is neither sound science nor sound theology.” thequran From a Qur’anic standpoint Shah adds a striking objection: ID implicitly claims that human “eyes” can reach and pin down God within a scientific paradigm, whereas “eyes cannot reach God but He reaches the human consciousness” (Q 6:103)—a category error about the very knowability of the divine. There is also a sectarian worry: Dembski told Focus on the Family in December 2007, “I believe God created the world for a purpose. The Designer of intelligent design is, ultimately, the Christian God,” which for Shah reveals that the movement’s neutral “designer” language masks a specifically Trinitarian agenda—even as, ironically, its arguments for a single Creator serve equally the God of Judaism, Islam, and Unitarian Christianity.

IV. Pros and Cons of BioLogos

Scientific

In its favor. BioLogos’s decisive advantage is that it takes on board the entire, converging body of evidence for common descent—genetics, paleontology, biogeography, developmental biology—without special pleading. It makes no scientific claims that future discovery is likely to overturn, and it keeps the practice of science unobstructed, since it never declares a phenomenon off-limits to natural explanation. Collins’s own field, genomics, supplies some of the strongest evidence for shared ancestry, lending his synthesis unusual authority.

Against. Critics on the ID side argue that BioLogos treats the evolutionary “consensus” as beyond question and counsels deference to it, sometimes in tension with its own believers’ instincts. A subtler scientific-philosophical criticism—pressed by the Christian Research Institute—is that Collins is not fully consistent: having banished God from the gaps in biology, he still appeals to cosmic fine-tuning and to the human “Moral Law” as pointers to God, and skeptics note that both are themselves candidates for future naturalistic explanation. Collins concedes they are “pointers,” not proofs.

Philosophical

In its favor. BioLogos rests on a coherent and venerable distinction between primary and secondary causation: God as primary cause works through the secondary causes that science studies, so that a complete natural explanation and full divine action are not rivals but complementary descriptions. This dissolves the forced choice between “chance” and “design” that Heller diagnosed. It also respects methodological naturalism as a working rule of science without inflating it into metaphysical naturalism—precisely the distinction Shah insists must be kept clear to avoid “unnecessary debates between theists and atheists.”

Against. Philosophically, BioLogos faces the charge that it purchases peace too cheaply. If God’s action is by definition scientifically undetectable, critics ask, is the claim of divine guidance empirically empty—compatible with any possible observation and therefore explanatorily idle? Some accuse it of a “NOMA”-style separation (Stephen Jay Gould’s “non-overlapping magisteria”) that keeps faith safe only by keeping it silent. And there remains the problem of divine action: how, precisely, God guides an evolutionary process described as unguided is left, perhaps necessarily, mysterious—Collins locates possible divine action in quantum indeterminacy but does not claim to demonstrate it.

Theological

In its favor. Theologically BioLogos offers a God who is not a tinkerer patching gaps but the sovereign author of a law-governed cosmos whose very regularities are His handiwork—a vision Shah repeatedly commends and finds echoed in the Qur’anic “Be, and it is” (kun fayakūn) and in Heller’s image of creation as a symphony in the Mind of God. It avoids making faith hostage to scientific fortune, embraces the problem of evil more honestly than a design argument that must explain apparent cruelty and waste, and it is ecumenically capacious: Collins presents theistic evolution as “the view espoused by many Hindus, Muslims, Jews, and Christians, including Pope John Paul II” (The Language of God, p. 199).

Against. Conservative theologians object that BioLogos strains traditional doctrine—especially a historical Adam and the Fall, original sin, and the special creation of humanity—when it accepts that humans emerged from a population sharing ancestry with apes. Its critics within the church argue it concedes too much authority to science over Scripture. And a Muslim reader like Shah, while warmly affirming the monotheism BioLogos serves, presses a pointed question at its Trinitarian framing: since “logos” in Collins’s usage evokes the opening of John’s Gospel, is the “BioLogos” brand quietly Christological even as the underlying theistic evolution is shared across Abrahamic monotheism? Shah’s provocative thesis is that “any good religious work by the Trinitarians in fact is only for the sake of the One God, Who has no father or any son or daughter”—so thequran that Collins, in defending a Creator through evolution, is effectively promoting the God of Judaism, Islam, and Unitarian Christianity.

V. The Methodological-Naturalism Fault Line

Beneath the whole dispute lies a disagreement about the rules of science. Methodological naturalism (MN) holds that science, as a method, restricts itself to natural causes and testable explanations—a thequran self-imposed limit that says nothing about whether the supernatural exists. ID’s deepest ambition, as the Dover court recognized, is to change those ground rules to admit intelligent (potentially supernatural) causation. Shah’s essay on the subject argues that this is where ID goes astray: MN is the disciplined boundary that gives science its empiricism and predictive power, and relaxing it to admit design would, in the long run, license the abandonment of inquiry whenever a problem looked hard.

Here the positions divide instructively. Plantinga argues that MN is not sacrosanct and that its standard justifications are weak; a believer need not accept that science is the only path to knowledge. Shah and BioLogos agree with Plantinga that metaphysical naturalism is a philosophical prejudice, not a scientific finding—but they part company with ID by insisting that MN remains the right working rule within science, precisely because abandoning it collapses the useful division of labor between science (which asks “how”) and theology (which asks “why”). The distinction Shah stresses—methodological versus metaphysical naturalism—lets the theist affirm both the integrity of science and the reality of God without conscripting one into the other’s territory.

VI. An Abrahamic Widening: The Islamic Vantage

The debate is usually staged as an American Protestant family quarrel, but the Islamic tradition offers an illuminating outside vantage that Shah, writing as a Muslim physician, brings to the fore. Classical Ashʿarite theology, and especially al-Ghazālī (d. 1111), tends toward occasionalism—the view that God is the sole true cause, continuously sustaining and re-creating the world at every instant, so that natural causes are the habitual patterns of God’s own action. On such a view the whole apparatus of “gaps” is theologically beside the point: God is not more present in the unexplained than in the explained, because He is equally the direct author of both. This structurally anti-gaps theology aligns the classical Islamic instinct more closely with BioLogos than with ID. (Scholars such as Frank Griffel note a live dispute over whether al-Ghazālī was a thoroughgoing occasionalist or left room for genuine secondary causation, but on either reading God’s agency saturates nature rather than hiding in its seams.)

The contemporary scholar Shoaib Ahmed Malik, in Islam and Evolution: Al-Ghazālī and the Modern Evolutionary Paradigm (Routledge, 2021), works this out in detail. Reasoning from within a Ghazālian Ashʿarite framework, Malik classifies Muslim options on evolution—creationism, human exceptionalism, Adamic exceptionalism, and “no exceptions”—and devotes a chapter to ID, concluding that “there is nothing intrinsically theistic about ID, and nor is there anything intrinsically atheistic about Neo-Darwinian evolution,” taylorfrancis since under God’s “radical contingency” and logically broad creative power both scenarios are equally within divine capacity. In a related 2022 study in Zygon, Malik and colleagues distinguish the Qur’anic design argument—which “argues for the existence of a supernatural God by acknowledging natural causes that bring about designed phenomena in the universe”—from ID’s reliance on “the supposed inability of science to explain designed phenomena through natural causes,” ZU Scholars concluding that the two are fundamentally different: the Qur’anic argument is a contingency argument, not a gaps argument. This is precisely Shah’s point, arrived at from the Ahmadi Muslim tradition: the argument from design, rightly understood, reads the whole of an ordered nature as a sign (āyah) of God—”We shall show them Our signs in every region of the earth and in themselves” (Q 41:53)—not the residue of what Darwin cannot yet explain.

VII. Assessment

On the balance of the evidence and argument, BioLogos is the stronger position where it matters most. As science, ID has not delivered a research program, its flagship cases have eroded, and a federal court—persuaded by working biologists and even by ID’s own witness under oath—found it not to be science. As theology, ID courts the god-of-the-gaps error that thinkers as varied as Heller, McGrath, Alexander, Collins, and Shah all identify as corrosive to faith, and, in Thomist and Islamic eyes alike, it risks shrinking God into a designer-among-beings. BioLogos, by contrast, keeps science whole and God sovereign, at the cost of leaving the mode of divine action mysterious and of straining some traditional readings of Scripture.

Yet ID should not be dismissed wholesale, and the fairest verdict is Shah’s: ID is good philosophy but bad science. Reframed as natural theology—as wonder at fine-tuning, at the intelligibility of the cosmos, at the sheer existence of ordered complexity—the design intuition is legitimate, ancient, and moving. Its error is one of genre: it presents as biology what belongs to metaphysics. BioLogos makes the complementary move correctly, letting biology be biology and confessing design as faith’s reading of the same facts.

VIII. Thematic Epilogue: Gaps, Plenitude, and the One Who Cannot Be Seen

The quarrel between Intelligent Design and BioLogos is, in the end, a quarrel about where to look for God. ID looks in the gaps—in the places where the causal story stutters, hoping to catch the Designer at work in the seams of nature. BioLogos, and the older traditions behind it, look at the whole—at the fact that there is a lawful, fertile, intelligible cosmos at all, and that its ordinary workings are luminous rather than empty. The first strategy is perpetually anxious, for the gaps keep closing; the second is at peace, for no discovery can subtract from the wonder that anything exists and coheres.

That is why the most telling voice in this debate may be Michael Heller’s. To make God and chance into competing forces, he warned, is a Manichaean mistake; the believer should see that “what we call chance and random events is well composed into the symphony of creation,” thequran a score written in the mathematical structures God “thinks through” into being. On this view the biologist tracing an evolutionary pathway and the psalmist singing that the heavens declare the glory of God are not adversaries reaching for the same territory; they are describing one reality in two registers.

The Islamic accent that Shah adds sharpens the point into a paradox at the heart of monotheism. The God worth arguing about is not an object that keen enough instruments might finally isolate in a cell or a constant. “Eyes cannot reach Him,” the Qur’an says, “but He reaches the human consciousness” (6:103). A God who could be cornered in a gap would be, by that very fact, too small to be God—an item in the inventory of the universe rather than its ground and author. The deepest theological objection to placing design in the gaps is not merely that the gaps keep closing but that the God of the gaps was never the God of Abraham, of Maimonides, of Aquinas, of al-Ghazālī, or of Collins’s own confession.

There is a final irony that Shah presses and that a fair essay should let stand. When a Trinitarian scientist like Collins argues, through the grandeur of evolution and the fine-tuning of the cosmos, for one sovereign Creator who authors all things and needs no gaps to act, the argument he builds belongs, whether he intends it or not, to every heir of Abrahamic monotheism—Jewish, Christian, and Muslim alike. The design intuition and the evolutionary vision, so often set at war, converge at last on a single confession: that the cosmos is not an accident and not a machine abandoned by its maker, but a word spoken and still being spoken—bios held in being by logos, life uttered by the One who says “Be,” and it is.