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The relationship between religion and science is one of the most contested and synoptically rich topics in AQA A-Level Religious Studies. It sits at the heart of the dialogue between religion and philosophy of religion (Component 2), because the question of whether scientific knowledge undermines, ignores, or coheres with religious belief is ultimately a question about reasonableness, meaningfulness and the coherence of a religious worldview. For centuries thinkers have asked whether religion and science are locked in inevitable conflict, occupy entirely separate territory, or are capable of genuine conversation and even integration. This lesson maps the principal models for the relationship, sets out the actual positions of the major scholars, examines two famous historical flashpoints (Galileo and Darwin), and weighs the cosmological question raised by the Big Bang.
Key term: Science is a systematic, public method of inquiry that proceeds by observation, the framing of hypotheses, controlled testing and the formulation of general laws, with all claims held open to revision in the light of new evidence.
Key term: Religion, for the purpose of this dialogue, is an organised system of belief, practice and community oriented towards the transcendent or sacred, which characteristically makes claims about meaning, value and ultimate reality as well as, in some traditions, about the origin and order of the natural world.
The most widely used framework for organising this debate was set out by the physicist-theologian Ian Barbour (1923–2013), especially in his Gifford Lectures published as Religion in an Age of Science (1990). Barbour proposed four broad ways of relating the two fields. The fourfold scheme is descriptive rather than exhaustive, but it gives candidates a disciplined vocabulary for evaluation.
| Model | Core claim | Characteristic move |
|---|---|---|
| Conflict | Science and religion are rivals making competing claims about the same reality; one must defeat the other | The "warfare" metaphor; literalist religion versus scientific materialism |
| Independence | Each occupies its own domain with its own questions, methods and authority, so they cannot truly conflict | Compartmentalisation; Gould's NOMA |
| Dialogue | The two can converse fruitfully at "boundary questions" and share methodological features | Critical realism; limit-questions |
| Integration | The two can be brought into a single coherent worldview | Natural theology; process theology |
The conflict model holds that religion and science are competitors for the same explanatory ground, and that the advance of science necessarily pushes religion back. Its nineteenth-century roots lie in the influential polemics of John William Draper (History of the Conflict between Religion and Science, 1874) and Andrew Dickson White (A History of the Warfare of Science with Theology in Christendom, 1896), whose "warfare thesis" most historians of science now regard as a caricature. In the present day the conflict model is pressed most forcefully by Richard Dawkins (b. 1941), who in The God Delusion (2006) argues that the "God hypothesis" is a scientific claim about the universe and a very improbable one. For Dawkins a universe created and superintended by God would be observably different from a godless one, so the matter is open to scientific adjudication, and the verdict goes against theism. He treats religious faith as belief without (or against) evidence, and famously characterises certain forms of religious transmission as akin to a mental virus.
The independence model insists that the apparent conflict is a category error, because the two enterprises answer fundamentally different kinds of question. Its best-known formulation is Stephen Jay Gould's principle of Non-Overlapping Magisteria (NOMA), set out in Rocks of Ages (1999): the magisterium of science covers the empirical constitution of the universe (what the world is made of and why it works as it does), while the magisterium of religion covers questions of ultimate meaning and moral value. On this account conflict only ever arises when one side trespasses on the other's territory.
Key term: NOMA (Non-Overlapping Magisteria) — Gould's principle that science and religion each hold a legitimate but separate domain of teaching authority, so that, kept to their proper spheres, they cannot contradict one another.
Lines of criticism. NOMA is frequently judged too tidy. Critics observe that historic religions do make empirical claims that bear on the magisterium of science — a virgin birth, a bodily resurrection, a six-day creation, answered petitionary prayer — so the magisteria plainly overlap. Dawkins objects that NOMA hands religion an undeserved exemption from rational scrutiny, while some religious thinkers complain that it concedes too much by surrendering all factual ground to science and reducing faith to private value.
Barbour's dialogue model proposes that, without collapsing into one another, science and religion can hold a genuine conversation, particularly at "boundary" or "limit" questions where a scientific account opens onto a deeper interrogation — for instance, why the universe is intelligible at all, or why there is something rather than nothing. John Polkinghorne (1930–2021), a Cambridge particle physicist who resigned his chair to be ordained an Anglican priest, is the foremost modern advocate of dialogue. In works such as Science and Theology (1998) and Belief in God in an Age of Science (1998) he argues that both disciplines are truth-seeking responses to the way reality actually is, employing different but rationally comparable methods. He champions critical realism: the view that scientific and theological models alike aim at a reality independent of us, achieve genuine (if partial and revisable) purchase on it, and proceed by a disciplined interplay of experience and interpretation.
The integration model goes further, seeking to weave scientific and religious understanding into a single coherent picture. One route is natural theology, the attempt to argue from features of the natural world to God. Another is process theology, which draws on the metaphysics of A.N. Whitehead (1861–1947) to conceive God and the world as deeply interrelated, with God working persuasively through, rather than overriding, natural processes including evolution. (You will meet the process conception of a non-coercive God again in the Christianity unit.)
It is illuminating to set the most influential modern advocates of conflict and dialogue directly against each other, since they share a background in the natural sciences yet draw opposite conclusions.
Richard Dawkins approaches the question as an evolutionary biologist. For him, the existence of God is a hypothesis about the universe and must be assessed like any other: it should make a difference to what we observe, it is in principle testable, and it loses. The complexity of life, once the strongest evidence for a designer, is fully accounted for by natural selection; the residual appeal to God to explain the universe's existence or order merely relocates the mystery into something still more complex and unexplained. Faith, on this account, is the great vice — "belief in spite of, even perhaps because of, the lack of evidence" — and religion's social effects (tribalism, the suppression of inquiry, the indoctrination of children) compound the intellectual error.
John Polkinghorne approaches it as a quantum physicist turned priest, and rejects almost every premise. Theism, he insists, is not a quasi-scientific hypothesis competing for the same explanatory space as physics; it is a different level of explanation, answering not "by what mechanism?" but "why is there a rational, intelligible, fruitful universe at all?" He appeals to critical realism as common ground: just as physicists believe their models track a reality they cannot directly see (quarks, curved spacetime), so theologians make truth-seeking, revisable claims about a reality disclosed in experience. He finds the deep intelligibility of the cosmos — the uncanny effectiveness of mathematics in describing nature — itself a pointer towards a rational Mind behind it, and treats faith not as evidence-free assertion but as "motivated belief", reasoning to the best explanation of the whole of experience.
| Issue | Dawkins (conflict) | Polkinghorne (dialogue) |
|---|---|---|
| What kind of claim is theism? | A scientific hypothesis about the universe | A different level of explanation: why there is an intelligible universe |
| Status of faith | Belief without or against evidence | "Motivated belief"; inference to the best explanation |
| Complexity of the cosmos | Evidence against God ("who designed the designer?") | A pointer towards a rational Mind |
| Relation of the disciplines | Rivals; science wins | Truth-seeking partners under critical realism |
The exchange shows that the conflict and dialogue models are not merely different attitudes but rest on a deeper disagreement about what religious claims are. If Dawkins is right that "God" is an empirical hypothesis, conflict follows; if Polkinghorne is right that it is a different order of explanation, the alleged warfare largely dissolves. Much of the topic turns on adjudicating that prior question.
A distinct scientific challenge comes not from physics or biology directly but from the cognitive science of religion, which seeks to explain why humans are so prone to religious belief. On the most discussed account, our minds carry a hyperactive agency-detection device: because it was far safer for our ancestors to mistake the wind in the grass for a predator than to miss a real one, we evolved to over-attribute agency, and this disposition spills over into the detection of unseen agents — spirits, ancestors, gods. Coupled with our instinctive "theory of mind" (the attribution of beliefs and intentions to others), this is said to make supernatural belief a natural by-product of ordinary cognition. Dawkins enlists such accounts to argue that religion is a misfiring of useful mental machinery.
The theological reply is twofold. First, this is once again a genetic explanation: showing how a belief-forming mechanism works does not show that its outputs are false — a point pressed by the cognitive scientist Justin Barrett (Why Would Anyone Believe in God?, 2004), himself a Christian, who notes that a believer may regard such God-detecting faculties as precisely the means by which a Creator made himself findable. Second, the same naturalistic style of argument, applied to our capacity for mathematics or moral knowledge, would "explain away" those too, which most atheists are unwilling to do — suggesting the strategy proves too much. The by-product theory thus illuminates the psychology of belief without settling its truth, reinforcing the lesson's central methodological theme.
The twentieth-century discovery that the universe has a finite past sharpened the cosmological dimension of the dialogue. The expanding-universe model was first proposed by the Belgian Catholic priest and physicist Georges Lemaître (1894–1966) as the "primeval atom" hypothesis. Some theists argue that a universe with a definite beginning coheres naturally with the doctrine of creatio ex nihilo — creation out of nothing — because a temporally finite cosmos is just what one might expect if it depends for its existence on a Creator.
Many scientists, however, warn against pressing the Big Bang into theological service. Stephen Hawking (1942–2018) argued in A Brief History of Time (1988) that, on a quantum-cosmological model in which spacetime has no boundary, the universe need have no first moment of the conventional kind, and so, in his words, there would be nothing for a creator to do. The theological reply distinguishes a temporal first cause from an ontological ground of being: classical theism holds that creation is fundamentally about the universe's dependence on God at every moment, not merely about its having a starting point, so the doctrine is not refuted even if the cosmos turns out to be temporally unbounded.
Exam tip: Never write that the Big Bang "proves" or "disproves" God. The marks lie in showing how the same scientific finding is interpreted differently by theist, atheist and agnostic, and in assessing which interpretation is more reasonable and coherent.
Charles Darwin (1809–1882), in On the Origin of Species (1859), provided a mechanism — natural selection acting on heritable variation — by which the appearance of design in living things could arise without a designer. This is widely regarded as the gravest challenge to the design argument of William Paley (1743–1805), whose Natural Theology (1802) had reasoned from the contrivance of an organism, like the contrivance of a watch, to an intelligent maker. Darwin showed that a blind, undirected, cumulative process could generate the same apparent contrivance. Dawkins presses the point in The Blind Watchmaker (1986): natural selection, he argues, is the only process known to be capable of producing organised complexity, and it does so without foresight or purpose, so the design inference is unnecessary.
Yet many religious thinkers regard evolution as wholly compatible with, even illuminating of, belief in a Creator. The Jesuit palaeontologist Pierre Teilhard de Chardin (1881–1955) held that evolution is the very means by which God creates, the cosmos straining towards an "Omega Point" of spiritual consummation. The Roman Catholic Church accepts evolution as consistent with faith, provided the human soul is held to be directly created by God — a position affirmed by Pius XII's Humani Generis (1950) and reiterated by John Paul II. The widespread position of theistic evolution holds that God creates through the evolutionary process rather than in competition with it.
The Intelligent Design (ID) movement, associated with the biochemist Michael Behe (b. 1952) and the mathematician William Dembski (b. 1960), argues that certain biological systems (Behe's stock example is the bacterial flagellum) display irreducible complexity: they require all their interacting parts to function at all, and so, it is claimed, could not have been assembled by gradualist natural selection, pointing instead to an intelligent designer. ID proponents are careful, for legal and strategic reasons, not formally to identify the designer with God.
| Position | Key claim | Representative figure |
|---|---|---|
| Neo-Darwinian atheism | Evolution removes any need for God | Dawkins |
| Theistic evolution | God creates through the evolutionary process | Teilhard de Chardin; Polkinghorne |
| Intelligent Design | Some structures are irreducibly complex and require a designer | Behe; Dembski |
| Young-Earth creationism | Genesis 1 is a literal historical account | Henry Morris |
Lines of criticism. The scientific mainstream rejects ID as failing the criteria of science: irreducible complexity is widely held to be a "God of the gaps" argument, locating God in the temporarily unexplained, and biologists have proposed plausible step-wise evolutionary routes to the very systems ID cites. In Kitzmiller v. Dover Area School District (2005), a US federal court ruled that ID is a form of religious creationism and may not be taught as science in public schools. The deeper theological objection, voiced by figures such as Polkinghorne, is that a "God of the gaps" is a poor and shrinking deity, forever evicted by the next discovery; better, they argue, to see God as the ground of the whole law-governed process rather than an intervener in its gaps.
The condemnation of Galileo Galilei (1564–1642) is the stock illustration of the conflict thesis. In 1633 the Roman Inquisition found Galileo "vehemently suspect of heresy" for defending heliocentrism — the claim that the Earth orbits the Sun — which was read as contradicting certain scriptural passages. Historians, however, caution against the simple warfare reading. The episode was tangled with politics, personality and the intellectual authority of Aristotelian science as much as with theology; Galileo enjoyed powerful ecclesiastical patrons, and a number of churchmen were open to the Copernican picture. In 1992 Pope John Paul II publicly acknowledged that the Church had erred in the case and honoured Galileo as a sincere believer, an admission often cited by advocates of dialogue against the warfare narrative.
Two further moves shape the modern dialogue and are frequently rewarded in essays.
The first is the warning against a "God of the gaps". The phrase, popularised by the Christian thinker Charles Coulson and used critically by Dietrich Bonhoeffer, names the strategy of invoking God only to plug the gaps in current scientific knowledge — whatever science cannot yet explain is attributed to direct divine action. The objection, pressed by atheists and sophisticated theists alike, is that such a God shrinks with every advance of science: as each gap is closed, the deity is evicted from another corner of the universe, until little is left. Polkinghorne and other dialogue theologians therefore reject the gaps strategy outright, arguing that God should be understood not as a rival cause within the chain of natural events but as the ground and sustainer of the entire law-governed order, the one who holds the whole intelligible process in being. On this view a completed science would not threaten God at all; it would display the rationality of creation more fully.
Key term: God of the gaps — the disreputable strategy of locating God in the currently unexplained; criticised because such a God is progressively displaced as science advances, and rejected by dialogue theologians in favour of God as the ground of the whole natural order.
The second move runs in the opposite direction: the fine-tuning or modern teleological argument. Cosmology has revealed that the fundamental constants of physics (the strength of gravity, the cosmological constant, the ratios governing nuclear forces) appear exquisitely balanced, such that minuscule changes would have produced a sterile universe incapable of stars, chemistry or life. Keith Ward and others argue that this remarkable poise is at least suggestive of purpose, and coheres better with theism than with the hypothesis of blind chance. The principal naturalistic reply is the multiverse: if there exist vast numbers of universes with varying constants, then it is unsurprising that some are life-permitting, and equally unsurprising that we find ourselves in one — this is the anthropic principle. Critics of the theistic reading add that fine-tuning, even if real, points only to a designer of cosmic constants, not necessarily to the personal God of Christianity, and that "design" inferences have a poor track record (recall Paley). Defenders counter that the multiverse is itself unobserved and arguably less economical than a single creator, so the argument remains live rather than decisive — exactly the kind of "limit-question" where, the dialogue model holds, science cannot itself settle the metaphysics.
The question of miracles brings the methodological clash into sharp focus and links this topic to the philosophy-of-religion unit. David Hume (1711–1776) defined a miracle as "a violation of the laws of nature" and argued that, since the laws are established by the firmest and most constant human experience, the evidence against any miracle is always maximally strong; it is therefore never reasonable to believe a miracle report on testimony, because it will always be more probable that the witnesses are mistaken or deceiving than that a law of nature was suspended. This is a thoroughly scientific-sounding objection: it treats the uniformity of nature as near-inviolable.
The twentieth-century theologian Maurice Wiles reached a sceptical conclusion from the opposite, theological direction. In God's Action in the World (1986) Wiles argued that a God who intervened to perform occasional miracles — parting a sea here, curing one patient there, while permitting Auschwitz — would be morally arbitrary and capricious; better, he held, to see the single great "act" of God as the creation and sustaining of the whole universe, rather than a series of selective interventions. Against both, defenders of miracles (drawing on Swinburne) argue that Hume's argument is question-begging — it assumes the uniformity it claims to prove — and that a God who is the author of nature's laws may have good reason to act within them on rare, revelatory occasions. Whether one reads a healing as a violation of natural law, an as-yet-unexplained natural event, or a meaningful sign, depends precisely on which model of the science–religion relationship one already holds — which is why miracles are a near-perfect test case for this whole topic.
| Flashpoint | The "conflict" reading | The "dialogue/integration" reading |
|---|---|---|
| Evolution | Natural selection abolishes the designer (Dawkins) | Evolution is God's chosen means of creating (Teilhard, Catholic teaching) |
| The Big Bang | Quantum cosmology needs no creator (Hawking) | A finite cosmos coheres with creatio ex nihilo; God grounds being at every moment |
| Fine-tuning | Explained by chance plus the multiverse / anthropic principle | Suggestive of cosmic purpose (Ward) |
| Miracles | Violations of natural law are never credible (Hume) | God may act within the laws he authored (Swinburne) |
| Galileo | Proof of inevitable warfare | A tangled historical episode the Church later disowned |
It would be a serious error to treat "religion" as a single block confronting science; religious responses span a wide spectrum, and the strongest essays map it.
At one pole stands Young-Earth creationism, associated with Henry Morris and the "creation science" movement, which reads Genesis 1 as a literal historical and scientific account, dates the Earth at roughly six to ten thousand years, and rejects evolution and much of modern geology and cosmology outright. This is the position that genuinely is in conflict with science, and critics — including most theologians — regard it as both bad science and questionable theology, resting on a particular modern literalism that the early Church Fathers (Augustine among them) did not share; Augustine warned Christians against making the faith look ridiculous by pronouncing dogmatically on natural matters they did not understand.
A more moderate position is Old-Earth (or "day-age") creationism, which accepts the great age of the universe while resisting full Darwinian common descent. Intelligent Design, examined above, is a further variant that accepts an old Earth and even much of evolution but denies that natural selection can account for certain "irreducibly complex" structures.
At the other pole, and embraced by the mainstream of the major churches, is theistic evolution, which accepts the entirety of evolutionary science and reads Genesis theologically — as a profound statement that the world is God's purposeful creation and humanity bears the divine image, not a textbook of how and when. On this reading the creation narratives answer different questions from those of biology, so there is nothing for them to contradict. The Catholic Church, most Anglicans, and many other traditions occupy this ground.
The upshot is that the apparent "conflict between science and religion" is, far more accurately, a conflict between science and one minority interpretation of religion. Recognising this internal diversity is itself a powerful evaluative move: it shows that the warfare narrative depends on selecting the most literalist version of faith as though it were the whole, and it explains why so many working scientists see no tension between their research and their belief.
Key term: Theistic evolution — the mainstream religious position that God creates through the evolutionary process; Genesis is read as a theological affirmation that the world is God's purposeful creation, not as a scientific account of mechanism or chronology.
Strengths of dialogue and integration. These models take seriously the genuine, distinct contributions of both fields; they fit the consensus of historians who reject the simple warfare story; and they are embodied in the lives of accomplished scientists, such as Polkinghorne and the geneticist Francis Collins, who hold sincere religious belief. They also do justice to the convergence at boundary questions, where science describes how the universe behaves and religion asks why there is an intelligible universe at all.
Strengths of conflict and independence. The conflict model captures the real experience of believers who feel their faith eroded by science, and it rightly refuses to exempt empirical religious claims from scrutiny. The independence model usefully diagnoses many disputes as category errors and protects each field from imperialism by the other.
Where each is vulnerable. Independence can look evasive, dodging the hard question of whether religious claims are true. Conflict often rests on a contested premise — that religion is essentially a rival empirical theory — which more sophisticated theology denies. Integration risks subordinating revisable science to fixed doctrine, or conversely diluting doctrine to fit current science.
Question: "Science has made belief in God unreasonable." Critically assess this view with reference to the dialogue between religion and philosophy of religion. [25]
The claim that science has rendered theism unreasonable presupposes a particular and contestable model of the relationship — Barbour's conflict model — and the strength of the claim stands or falls with that model. I shall argue that, while science has decisively refuted certain religious claims and shifted the burden of proof, it has not made belief in God unreasonable, because the most defensible account of the relationship is one of dialogue rather than conflict.
The case for the statement is strongest where religion has made empirical claims that science has overturned. Darwin's account of natural selection removed the necessity of Paley's designer; geology and cosmology have falsified a literal six-day creation and a young Earth. Dawkins presses this into a general argument: the "God hypothesis" is a claim about the universe, and an extravagant one, since to explain the complexity of the world by positing an even more complex designer ("who designed the designer?") is to take a step backwards in explanation. On this view the rational default is naturalism, and theism survives only by retreating into the ever-shrinking gaps that science has yet to fill.
This case, however, can be resisted at each stage. First, the empirical refutations tell decisively only against literalist religion; they leave untouched the mainstream traditions that read Genesis theologically and accept evolution as the means of God's creating, as Teilhard de Chardin and the Catholic magisterium do. Conflict between science and biblical literalism is not conflict between science and theism. Second, Dawkins's "who designed the designer?" objection assumes that God is one more complex object within the universe, requiring the same kind of explanation as a watch or an eye. Classical theism denies precisely this: God is held to be metaphysically simple and the necessary ground of contingent being, not a composite item competing for space inside the natural order. If that conception is even coherent, Dawkins has refuted a straw target. Third, the "God of the gaps" charge, properly understood, is an argument for the dialogue model and against crude theism, not against theism as such — Polkinghorne and others welcome it, locating God as the author of the whole rational, law-governed cosmos rather than as a stop-gap for the unexplained.
The independence and dialogue models therefore reframe the question. Gould's NOMA would dissolve the whole dispute by assigning fact to science and value to religion, but this is too neat: religions do make existential and historical claims, so the magisteria overlap, and the strongest theism does not retreat into private value. The dialogue model is more honest and more powerful. It concedes that religion must surrender false empirical claims, yet insists that science's very success raises questions it cannot itself answer — why there is an ordered, intelligible universe finely poised for life, and why the human mind should be able to read it. These are not gaps in science but limits of science, and at these limit-questions a theistic interpretation remains, at the least, a reasonable option.
Weighing the two sides, I judge that science has made some religious beliefs untenable and has rightly raised the evidential bar, but it has not made belief in God unreasonable. The conflict thesis depends on identifying religion with a rival empirical hypothesis, a premise that the most serious theology rejects; once that premise falls, the appearance of a knockout blow disappears. The reasonable verdict is not that science compels atheism, but that, on the contested terrain of limit-questions, theism and naturalism remain live interpretations between which the evidence of natural science alone cannot adjudicate. Belief in God is therefore not unreasonable, though it is no longer the only reasonable option — which is exactly what the dialogue model would predict.
Examiner-style commentary. This response would reach the top band because it sustains a single line of argument rather than listing models. It states a thesis in the opening paragraph, builds the strongest possible case for the statement, then dismantles that case point by point using accurately attributed scholarship (Dawkins, Paley, Darwin, Teilhard de Chardin, Gould, Polkinghorne), and returns to a substantiated and suitably qualified judgement. The discriminator is the precise handling of the "who designed the designer?" objection and the distinction between conflict-with-literalism and conflict-with-theism — a Mid-band answer typically describes Barbour's four models and stops; a Stronger answer evaluates one or two; the Top-band answer here weaponises the distinction between the models to settle the question. Technical vocabulary (creatio ex nihilo, critical realism, limit-questions, necessary being) is deployed correctly and in service of the argument, not for display.
Exam tip: In a 25-mark synoptic essay, do not merely describe Barbour's four models. Choose a thesis, build the strongest case against it, dismantle that case with accurately attributed scholars and dates, and reach a qualified judgement. The single most valuable move is distinguishing conflict-with-literalism from conflict-with-theism.