God & BeliefEssay
Science and Faith: Enemies, Strangers, or Partners?
The 'war' between science and religion makes a dramatic story, but the real history, and what scientists actually believe, is more surprising and more welcoming.
THE QUESTION LIBRARY GOD & BELIEF
Why has religion appeared in so many human cultures?
Religion shows up almost wherever people live, so here is what surveys and archaeology show, what scientists think explains it, how those ideas have held up, and how believers and skeptics read the same facts.
THE SHORT ANSWER
Most likely because religion grows out of ordinary human minds and group life, though researchers still debate the details. In 2020, about three in four people worldwide identified with a religion. The leading ideas: religious ideas fit how our minds sense agents and intentions, shared rituals can bind groups, and people tend to take up the faith they see others live sincerely. Explaining how beliefs arise does not settle whether they are true. Many believers read this pattern as a sign that people are made to seek God.
- In 2020, 75.8% of the world’s people identified with a religion, according to a Pew Research Center analysis of more than 2,700 censuses and surveys.
- At Qafzeh cave in Israel, human remains about 100,000 years old were found near red ochre, which the Smithsonian says suggests a ritual.
- In a study of 33 hunter-gatherer societies, every one had animism, the belief that plants, animals and even thunder have intentions or a life force, but only 15% had a high god active in human affairs.
- A 2019 study claiming that moralizing “big gods” came only after big societies was retracted in 2021 over its handling of missing data, and the question is still debated.
- Philosophers widely agree that showing where a belief came from does not, by itself, show that it is false.
About this picture
Stone enclosures and T-shaped pillars at Göbekli Tepe in Turkey, built by hunter-gatherers between 9,600 and 8,200 BCE. UNESCO says the monuments were probably used for rituals, most likely funerary ones.
WHERE THE EVIDENCE STANDS
How sure are we?
- Most people in the world identify with a religion.Pew Research Center (2025), more than 2,700 censuses and surveys covering 201 countries and territories: 75.8% identified with a religion in 2020 and 24.2% with none. Pew notes that some people with no religion still hold religious or spiritual beliefs.
- Religious ideas come easily to human minds because they build on ordinary thinking habits.A central claim of the cognitive science of religion (Barrett 2000; Boyer 2003), which the Stanford Encyclopedia of Philosophy (2026) calls a relatively new research program. Two of its best-known proposed habits have not held up well in tests: in six experiments, threat did not raise false agent detection (Maij, van Schie and van Elk), and five studies of more than 67,000 people found that mentalizing measures did not predict belief, apart from a curved pattern in the U.S. (Maij and colleagues 2017).
- Belief in watchful, moralizing “big gods” helped small groups grow into large, cooperative societies.Argued by Ara Norenzayan and colleagues (book, 2013; Behavioral and Brain Sciences, 2016). A 2019 Nature study using the Seshat databank found big gods came after big societies, but it was retracted in 2021 after critics showed that missing data had been counted as absences (Beheim and colleagues 2021). The original team says a corrected analysis still supports its result (2022). The Stanford Encyclopedia describes the field as divided.
- Showing how religious belief arises shows that it is false.The Stanford Encyclopedia of Philosophy reports wide agreement that uncovering a belief’s origins does not, by itself, show that it is false (the genetic fallacy). It adds that origins can still raise questions about whether a belief was formed reliably, which philosophers continue to debate.
- The near-universal sense of the divine is a sign that God is real.Calvin, the Catechism of the Catholic Church and the Quran’s teaching on fitrah see a God-given inclination behind it. David Hume argued in 1757 that belief in invisible power is very widespread but perhaps not universal, and not uniform, so it is no original instinct. Philosophers still debate this “common consent” argument, and the Stanford Encyclopedia reports that most researchers in the field treat the wider meaning of their science as a separate philosophical question.
WHAT WE DON’T KNOW YET
Nobody knows exactly when religion began, because early ritual leaves thin traces that must be interpreted. Researchers also do not know how much each cause, from thinking habits to group life and upbringing, contributes, or whether big gods came before or after big societies.
WHAT WOULD CHANGE THIS ANSWER
Well-dated new finds, large studies in many cultures with plans filed in advance, and cleaner historical data could shift the balance among the theories. None of these findings could, on their own, settle whether religious beliefs are true, and whether God exists is beyond science.
Most likely because religion grows out of ordinary human minds and group life. Researchers from many fields agree that religion has evolutionary roots, in a broad sense, but they still argue about which pieces matter most. And explaining how a belief arises is a different question from whether it is true.
People ask this from many directions. A believer may see religion everywhere and feel that humans are made to seek God. Someone who was never religious may wonder why so many others believe, and whether they are missing something. Both are fair questions, and this page takes both seriously.
In 2020, 75.8% of the world’s people identified with a religion, according to the Pew Research Center, which studied more than 2,700 censuses and surveys. Signs of ritual are also old. At Qafzeh cave in Israel, human remains about 100,000 years old were found near pieces of red ochre. The Smithsonian’s Human Origins Program says the ochre suggests a ritual. At Göbekli Tepe in Turkey, people who lived by hunting and gathering raised carved stone pillars, some up to 5.5 meters tall, between 9,600 and 8,200 BCE. UNESCO says the monuments were probably used for rituals. Both readings are inferences from objects, not written records.
Why would religion appear so widely? There is likely no single answer, but three ideas come up often. First, our minds are quick to notice agents, beings that act on purpose, and to guess what others think. Religious ideas may build on those habits. Second, shared rituals and belief in gods who watch over people may help large groups cooperate. Third, people tend to take up the faith they see others practice sincerely. Each idea has some support, and parts of the first two did not hold up when tested again.
None of this settles whether God exists. Philosophers widely agree that where a belief came from does not, by itself, show that it is false. Many believers read the same pattern as a sign that people are made to seek God. That question is beyond science.
THE LONG ANSWER
THE LONG ANSWER · ABOUT 8 MINUTES
You’ve read your 3 free long answers this month.
The short answer, how sure we are, what we don’t know, what would change our mind and every source stay free on every page, for everyone.
All Access members read the long answer: the evidence piece by piece, the strongest objections, and how to check it yourself.
Join All Access · $1 a week Or $6 a month
Billed $52 once a year. Cancel anytime in your account.
Until December 4, 11:59 pm Pacific: the Founding rate is $39 a year, and it stays $39 while you stay a member.
Create a free account: 6 long answers a month, email only.
Paying never buys a different answer. Our Paywall Promise
Keep asking
What are the main arguments for God’s existence, and how do people respond to them?
There are five classic kinds: cosmological arguments (why anything exists, or why the universe began), design and fine-tuning arguments, the ontological…
New here?
God Plays Dice answers big questions in plain words, with sources and one of six honest labels.
Words worth knowing (6)
- Cognitive science of religion
- The study of how ordinary human thinking, such as noticing agents and guessing what others think, shapes religious ideas and practices.
- Agency detection
- The mind’s quick tendency to sense a being with purposes behind a sound, movement or event. Some researchers propose that a hair-trigger version of it helps explain belief in unseen beings.
- Animism
- The belief that plants, animals and even things like thunder have intentions or a life force and can affect people’s lives.
- Credibility-enhancing displays
- Actions that show a person truly holds a belief, such as costly rituals or regular attendance at services. The idea is that people more readily adopt beliefs from those who live them this way.
- Genetic fallacy
- Judging a claim true or false by where it came from, when its origin is beside the point, instead of by the reasons for it.
- Preregistered study
- A study whose plan, including how the data will be analyzed, is written down and filed with a registry before the study is done. This helps separate planned tests from after-the-fact choices.
Sources & further reading
(10) · Checked Sep 30, 2026
- How the Global Religious Landscape Changed From 2010 to 2020 ↗Pew Research Center (June 9, 2025), Hackett and colleagues, doi:10.58094/fj71-ny11More than 2,700 censuses and surveys; 201 countries and territories with 99.98% of the world’s population. 2020: 75.8% affiliated, 24.2% unaffiliated (up from 23.3% in 2010; 2010 affiliated 76.7%); Christians 2.3 billion, 28.8%; Muslims 25.6%; Hindus 1.2 billion, 14.9%; Buddhists 4.1%; Jews about 0.2%; other religions 2.2%; unaffiliated 1.9 billion. Some unaffiliated people hold religious or spiritual beliefs (footnote 1). Unaffiliated majorities rose from seven to 10 places. Revised 2010 estimates: “Most consequentially, we changed how we measure China’s religious composition”; the zongjiao measure excludes people who engage in religious or spiritual beliefs and practices but do not consider themselves affiliated. Earlier estimate: The Global Religious Landscape (Dec. 18, 2012, https://www.pewresearch.org/religion/2012/12/18/global-religious-landscape-exec/): 84% of the 2010 world population of 6.9 billion religiously affiliated.
- Göbekli Tepe (World Heritage List, inscribed 2018) ↗UNESCO World Heritage CentreTürkiye; monumental megalithic structures erected by hunter-gatherers in the Pre-Pottery Neolithic between 9,600 and 8,200 BCE; “probably used in connection with rituals, most likely of a funerary nature”; T-shaped pillars carved with wild animals, some up to 5.50 m tall; recent excavations identified structures that appear to stem from domestic buildings. The live page returns HTTP 403 to scripts; read via the Internet Archive snapshot of Sept. 27, 2026 (20260927000241). Also: Smithsonian Human Origins Program, “Qafzeh: Oldest Intentional Burial” (https://humanorigins.si.edu/evidence/behavior/burial/qafzeh-oldest-intentional-burial): as many as 15 Homo sapiens individuals with 71 pieces of red ocher and ocher-stained stone tools, ocher found near the bones “suggesting it was used in a ritual,” about 100,000 years old; Burial page (https://humanorigins.si.edu/evidence/behavior/burial): rituals “may imply a belief that a person’s identity extends beyond death.”
- Hunter-Gatherers and the Origins of Religion ↗Human Nature 27(3):261–282 (2016), Hervey C. Peoples, Pavel Duda and Frank W. MarloweOpen access (PMC4958132, full text read via Europe PMC). 33 hunter-gatherer societies; animistic concepts present in all sample societies; animism defined as belief that plants, animals and even thunder have intentionality (or a vital force) and can influence human lives; afterlife and shamanism 79%; ancestor worship 45%; high gods (single, all-powerful creator deities, Swanson’s definition) 39%; active high gods 15%. Ancestral-state reconstruction on a time-calibrated supertree: animism in the most recent common ancestor of present-day hunter-gatherers; ancestor spirits or high gods active in human affairs absent in early humans. Also: belief in supernatural agents occurs in “virtually all human cultures”; red ochre “often considered a marker for symbolic behavior.”
- Evolutionary Approaches to Religion (Jason Marsh) ↗Stanford Encyclopedia of Philosophy (first published Feb. 18, 2026)Asks why religion arose and spread to “virtually every known human society”; “likely no single explanation,” though these thinkers agree religion has broadly evolutionary roots; CSR “still a relatively new research program” and “not everyone is on board with every idea”; by-product view (agency detection, HADD as a “better-safe-than-sorry” mechanism, theory of mind, minimally counterintuitive concepts) and its criticisms (Maij et al. 2019; Van Leeuwen and van Elk 2019); Big Gods (Norenzayan 2013, Big Gods: How Religion Transformed Cooperation and Conflict); Seshat dispute: field “currently divided,” 414 societies, retraction after missing data were treated as known absences, how serious the error was “depends on which research team one asks” and rests partly on when absence of evidence is evidence of absence; costly signaling and Sosis and Bressler (secular communes “3 times more likely to dissolve in a given year”); religious-priming generosity effect, “not every finding in this domain has replicated”; hybrid models “on the rise” and Norenzayan’s shift; moralizing God “so culturally successful in recent millennia”; widespread consensus that uncovering origins won’t by itself reveal a belief is false (genetic fallacy); tabloid vs perception cases, and which one religious belief resembles “remains controversial”; beliefs that would persist even if no gods existed; independent-reasons reply (arguments, testimony, religious experience); Dawkins and Dennett liken religion to a mind virus; reality “more nuanced and more metaphysically neutral”; theistic scientists including Justin Barrett; Dennett’s spell is the idea that religion cannot be studied scientifically; the science of religion is descriptive and its wider implications “remain a distinct philosophical matter”; consensus gentium (common assent) arguments; Marsh and Marsh’s challenge from religious diversity. Also: SEP “The Concept of Religion” (Kevin Schilbrack, 2022, https://plato.stanford.edu/entries/concept-religion/): universality under functional definitions “is not a discovery but a product of one’s definition.”
- Exploring the natural foundations of religion ↗Trends in Cognitive Sciences 4(1):29–34 (2000), Justin L. BarrettAbstract (PubMed 10637620): a review; “seemingly extraordinary thoughts and behaviours can be supported by quite ordinary cognition.” Also: Pascal Boyer, “Religious thought and behaviour as by-products of brain function,” Trends in Cognitive Sciences 7(3):119–124 (2003), doi:10.1016/s1364-6613(03)00031-7, abstract (PubMed 12639693): religious concepts activate mental systems also present in non-religious contexts and “tweak” their usual inferences, including detection of animacy and agency.
- Mentalizing skills do not differentiate believers from non-believers, but credibility enhancing displays do ↗PLOS ONE 12(8):e0182764 (2017), David L. R. Maij and colleaguesAbstract (Europe PMC, PMC5568287): five studies, over 67,000 participants; empathy and autism-spectrum quotients not predictive of belief in supernatural agents in the Netherlands, Switzerland and the U.S., with a curvilinear effect in the U.S.; strong influence of credibility-enhancing displays, the credible religious acts people observed during their upbringing. Full text (Europe PMC): CREDs were measured with questions about parents’ or caregivers’ religious practice (for example, how often they attended services); the authors list as a limitation a possible common genetic factor that could partly explain the CREDs effect. Compare Norenzayan, Gervais and Trzesniewski, PLoS ONE 7(5):e36880 (2012), doi:10.1371/journal.pone.0036880: autism spectrum predicted reduced belief in a personal God, mediated by mentalizing. Agency detection: Maij, van Schie and van Elk, Religion, Brain & Behavior 9(1):23–51 (online Aug. 2017), doi:10.1080/2153599x.2017.1362662, abstract (OpenAlex): hypothesis that failing to detect agents may be more harmful than wrongly assuming them absent; six experiments, N = 233; threatening pictures, classical horror music and virtual reality did not increase false agent or intentionality detection; unrelated to supernatural beliefs. Priming: Shariff and Norenzayan, Psychological Science 18(9):803–809 (2007), doi:10.1111/j.1467-9280.2007.01983.x; Shariff, Willard, Andersen and Norenzayan, Personality and Social Psychology Review 20(1):27–48 (2016), doi:10.1177/1088868314568811: 93 studies, 11,653 participants, robust effects including prosocial measures, but not reliably among non-religious participants; Gomes and McCullough, Journal of Experimental Psychology: General 144(6):e94–e104 (2015), doi:10.1037/xge0000027: preregistered replication, N = 650, no significant effect, small meta-analysis mean effect not different from zero, larger studies smaller effects; Billingsley, Gomes and McCullough, Royal Society Open Science 5(8):170238 (2018), doi:10.1098/rsos.170238: Bayesian analyses favored no effect of implicit priming; small but reliable effect of explicit priming among religious subjects only. Preregistration defined by the Center for Open Science (https://www.cos.io/initiatives/prereg): specifying the research plan in advance and submitting it to a registry.
- The cultural evolution of prosocial religions ↗Behavioral and Brain Sciences 39:e1 (2016; online Dec. 2014), Ara Norenzayan and colleaguesAbstract (Crossref): moralizing supernatural agents and credible displays of faith promoted large-scale cooperation among strangers; prosocial religions spread in the last 10–12 millennia as successful groups expanded or were copied; beliefs originally arose as by-products and particular variants were then culturally selected. Also: Sosis and Bressler, “Cooperation and Commune Longevity: A Test of the Costly Signaling Theory of Religion,” Cross-Cultural Research 37(2):211–239 (2003), doi:10.1177/1069397103037002003, abstract (Crossref): eighty-three 19th-century U.S. communes; results “support aspects” of costly signaling theory (the full text was not opened; the three-times figure is the Stanford Encyclopedia’s summary).
- Retraction Note: Complex societies precede moralizing gods throughout world history ↗Nature 595:320 (July 7, 2021), Whitehouse and colleaguesOriginal: Nature 568:226–229 (March 20, 2019), doi:10.1038/s41586-019-1043-4, 13 authors: 414 societies, 30 regions, past 10,000 years, 51 social-complexity measures, 4 measures of supernatural enforcement of morality; moralizing gods follow megasocieties of more than about one million people; standardizing rituals generally precede them. Critique: Beheim and colleagues (including Norenzayan), “Treatment of missing data determined conclusions regarding moralizing gods,” Nature 595:E29–E34 (July 7, 2021), doi:10.1038/s41586-021-03655-4: 61% of moralizing-gods data points missing, mostly from populations under one million; re-coded as absences; extant data or standard imputation reverse the finding. Retraction note: gaps should have been labelled ‘absent’ or ‘inferred absent’ rather than converting NAs to zeros; original conclusions “still strongly supported”; Baines, Covey and Feeney do not agree with the retraction. Retake: Whitehouse and colleagues, “Testing the Big Gods hypothesis with global historical data: a review and ‘retake’,” Religion, Brain & Behavior 13(2):124–166 (online June 29, 2022), doi:10.1080/2153599x.2022.2074085, abstract (OpenAlex): corrected and extended version confirming the headline finding.
- Catechism of the Catholic Church, paragraphs 27–30 ↗The Holy See (Libreria Editrice Vaticana)CCC 27: “The desire for God is written in the human heart”; CCC 28: forms of religious expression “are so universal that one may well call man a religious being” (with Acts 17:26–28); CCC 30: “the witness of others who teach him to seek God.” Other inside sources: Calvin, Institutes of the Christian Religion 1.3.1, Beveridge translation first published 1845 (CCEL, https://www.ccel.org/ccel/calvin/institutes.iii.iv.html): “by natural instinct, some sense of Deity”; no nation or people, he writes, lacks the conviction “that there is a God” (the page paraphrases his wording); Calvin 1509–1564 (CCEL author and work pages). IEP “Reformed Epistemology” (Anthony Bolos and Kyle Scott, https://iep.utm.edu/ref-epis/): Plantinga credits Calvin with the sensus divinitatis, “a term that is well known to most in the reformed tradition.” Quran 30:30, Sahih International, with the translation’s footnote on fitrah (https://quran.com/30/30, via the Quran.com API). Sahih al-Bukhari 1385 (https://sunnah.com/bukhari:1385; the live page returns HTTP 403 to scripts, read via the Internet Archive snapshot of March 11, 2026): every child is born with a true faith. Rig Veda 1.164.46, Griffith translation [1896] (sacred-texts.com, https://sacred-texts.com/hin/rigveda/rv01164.htm; the live page returns HTTP 403, read via the Internet Archive snapshot of June 18, 2025). Vivekananda, “Response to Welcome,” World’s Parliament of Religions, Chicago, 11 Sept. 1893 (https://www.ramakrishnavivekananda.info/vivekananda/volume_1/addresses_at_the_parliament/v1_c1_response_to_welcome.htm).
- The Natural History of Religion (1757, 1777), Introduction and Section 2 ↗David Hume, via Hume Texts OnlineIntroduction: two questions, religion’s “foundation in reason” and its “origin in human nature”; belief of “invisible, intelligent power” very generally diffused but perhaps not so universal as to admit no exception, nor uniform, so it springs not from “an original instinct.” Section 2 (https://davidhume.org/texts/n/2): among polytheists the first ideas of religion arose “from a concern with regard to the events of life, and from the incessant hopes and fears, which actuate the human mind.” Section titles (https://davidhume.org/texts/n/): “That Polytheism was the primary Religion of Men”; “Origin of Theism from Polytheism.” Genetic fallacy: IEP “Fallacies” (Bradley Dowden, https://iep.utm.edu/fallacy/): an attempt to discredit or support a claim “because of its origin (genesis) when such an appeal to origins is irrelevant.”
See a mistake? Report a problem. Corrections are made openly.
CONTINUE THE THREAD
Where this question leads.
God & BeliefAnswer
How do different religions describe the beginning of the universe?
There is no single religious creation account. Here are three selected texts: Genesis, the Quran and a Rigveda hymn. These examples do not speak for every religion or…
God & BeliefAnswer
How can two people talk about big beliefs without it turning into a fight?
Big beliefs touch identity, family and what feels sacred, so here is what research says helps a hard conversation, a step-by-step way to try it, and why you are allowed to stop.