A company can outlive its founders. Harari uses shared beliefs to explain human cooperation, then asks whether agriculture and science have made life better. The evidence is less uniform than his story.
A company can survive the death of every person who works for it. In Sapiens, Yuval Noah Harari explains how: Peugeot is a legal entity, distinct from its factories, cars, and employees. Those can change while the company continues.
Harari builds a history of our species around this capacity. Shared rules and beliefs let humans cooperate with people they have never met. He calls the systems that organize this cooperation imagined orders. They can support hospitals and armies.
Sapiens: A Brief History of Humankind first appeared in Hebrew in 2011 and in English in 2014. It follows human cooperation through agriculture, empires, and science, then asks whether our growing power has improved anyone's life. The institutional examples help explain cooperation. His larger claims need closer checking.
Cueva de las Manos, Argentina. Handprints remain; their makers' beliefs are harder to recover. Photo: Fjturban, CC BY-SA 3.0.
Language and cooperation
When could people share an imaginary world?
In chapter 2, Harari distinguishes a warning about a lion from a belief that the lion is a tribe's guardian spirit. A warning coordinates people in the immediate situation. A shared belief can give strangers obligations to one another long after the danger has passed. Harari gives collective imagination the decisive role in our expansion.
He dates a cognitive revolution, the emergence of new ways of thinking and communicating, to roughly 70,000 to 30,000 years ago. He offers genetic mutation as a possible explanation and acknowledges that the cause is unknown. Artifacts cannot date the first stories.
Sally McBrearty and Alison Brooks's archaeological review found that behaviors often grouped into a sudden human revolution, including pigment use and specialized tools, appeared at different African sites well before that proposed transition. These scattered appearances undermine a single worldwide switch; they do not reveal every step in language's development.
The book also treats about 150 people as a ceiling for groups held together by personal acquaintance. Dunbar's proposed limit derives partly from comparisons of primate brains and group sizes. A reanalysis by Patrik Lindenfors and colleagues found estimates too uncertain to support a fixed number; Dunbar continues to defend the broader evidence. The cooperation argument does not require a fixed threshold.
Human expansion also brought ecological damage, the subject of chapter 4. A global analysis of large-mammal extinctions found a strong association with human expansion. Research on northern mammal species also finds differing contributions from climate and people. The evidence for a major human role is stronger than the claim that every extinction followed the same sequence of arrival and overhunting.
Imagined orders
Five ways strangers organize themselves
An imagined order depends on shared recognition. A river flows without anybody recognizing it; a bank balance requires rules about ownership and transfer. Calling the balance fiction can mislead: a legally valid debt is a true fact about the world.
Recognition needn't mean willing consent. Chapter 6 describes courts and armies enforcing an order. Someone can reject a government's legitimacy and still have to obey its officers. The gallery explains Harari's examples through paraphrase and commentary.
choose an order, or use the arrow keys
Order one
Money
A buyer and a seller can disagree about religion and still accept the same currency. Each expects somebody else to accept it later. Harari uses this to explain how money can connect people who share little else.
Trust has institutional support. Harari mentions rulers demanding taxes. Bank deposits are claims on banks, and payments depend on functioning records and settlement systems. The Bank of England's explanation describes modern money as a widely accepted IOU.
Sapiens, chapter 10, "The Scent of Money." Explanation, with the central-bank account linked above.
Order two
Gods and religions
Harari describes believers who can build a hospital or join a crusade together because they share a religious account of their obligations. Religion can sustain cooperation, and also define who is excluded from it.
Explaining belief's social effects does not establish whether a deity exists. Harari calls gods inventions; that is a philosophical position, rather than an archaeological finding. We also cannot establish that religion was the first way strangers cooperated.
Sapiens, chapter 2, "The Tree of Knowledge," and chapter 12, "The Law of Religion." Paraphrase and commentary.
Order three
Nations
A national identity links people who will never meet through an account of their common history and membership. Harari asks how that recognition can make a stranger someone you owe help, or someone you will fight alongside.
A nation and a state are different things. National identification can survive without a state; a state's offices and armed forces can operate despite deep disagreement among its residents. The shared identity matters, but it cannot explain a state's survival on its own.
Sapiens, chapters 2 and 6. Paraphrase of the cooperation argument; the distinction between identity and government is commentary.
Order four
The limited company
Peugeot is Harari's clearest example. The company can own property and incur obligations independently of the people working for it. Its assets and staff can change while its legal identity continues. A court can dissolve it even while its factories remain standing.
Law establishes who can act for the company and how liability is allocated. Harari compares incorporation with a religious ritual. An enforceable legal procedure creates a company; recognizing it does not require believing a false claim.
Sapiens, chapter 2, "The Legend of Peugeot" subsection. Paraphrase and commentary.
Order five
Human rights
Chapter 6 compares Hammurabi's unequal legal ranks with the equality claimed in the American Declaration of Independence. Harari says biology supplies neither legal rank nor rights. He treats both as imagined orders.
People differ biologically. Equal rights concern how people ought to be treated, so anatomical differences don't refute them. A person whose rights are violated can still have a valid claim against the violator. Harari allows that rights help build a better society, but describing their historical origins does not settle whether they are justified.
Sapiens, chapter 6, "Building Pyramids." Paraphrase; the distinction between moral validity and enforcement is commentary.
money is the most universal and most efficient system of mutual trust ever devised.Harari, Sapiens, chapter 10, "How Does Money Work?" subsection
Anthropologist C. R. Hallpike objects that Harari blurs a belief with a convention. A rule agreed for a purpose and a claim about a spirit aren't interchangeable just because neither is a physical object. The question is then specific: what must people recognize, what do they expect from one another, and who enforces the arrangement?
Agriculture
More food, harder lives?
Chapter 5 calls agriculture "history's biggest fraud." The charge is that producing more food supported more people without reliably improving each person's diet or workload. Harari describes a trap: small changes that seemed useful bound families to crops, supported more children, and made returning to foraging harder. Nobody needed to plan the final result.
We did not domesticate wheat. It domesticated us.Harari, Sapiens, chapter 5, wheat discussion
The reversal is a metaphor. Wheat had no plan. Humans changed the plant through cultivation, and dependence on it changed human settlement and labor. Reproductive success and a tolerable life are different outcomes.
There is evidence for real costs. A study combining skeletons and ancient DNA suggested poorer growth conditions among early European farmers, based on stature relative to genetically predicted height. A study of Agta communities in the Philippines associated greater involvement in agriculture with less leisure, especially for women. Neither sample establishes the experience of every first farmer.
A larger study of ancient body size across several regions found declines that sometimes preceded agriculture and different patterns afterward. Stature was comparatively stable in the Levant and China. Farming emerged in different places with different crops, and mixed cultivation and foraging could continue for generations. An account centered on wheat cannot stand for all those transitions.
Teeth and bones can reveal diet and signs of stress; they don't record satisfaction. Modern foraging communities aren't unchanged prehistoric samples either. Gurven and Kaplan's mortality research also cautions against confusing short life expectancy at birth with adults routinely dying young: deaths in childhood lower that average. Prehistoric population totals are reconstructions too, not counts.
Happiness
A question we can't ask the dead
Chapter 19 asks whether a modern astronaut was happier than a prehistoric cave painter. We have no comparable evidence about their happiness. Harari ends the chapter acknowledging that the history of happiness is too young for firm conclusions. The chapter leaves the comparison unresolved.
He explores several answers: expectations rise with circumstances; people adapt to gains and losses; a meaningful life can contain unpleasant days. His account of Buddhism asks whether relief comes from loosening the craving for pleasant feelings. These are different accounts of what happiness means, not one demonstrated explanation.
The biological account is the weakest when it becomes a fixed thermostat. A feeling's dependence on the brain doesn't show that circumstances have little lasting effect. Richard Lucas's longitudinal studies found lasting declines in reported well-being after long-term disability. Adaptation varies by event and person; it cannot be assumed complete.
Money is also more complicated than an ever-resetting expectation. Killingsworth, Kahneman, and Mellers's joint reanalysis found that experienced happiness generally rose with income in their sample of employed US adults, with different patterns among the least happy respondents. The association does not prove that money causes happiness, or answer the prehistoric comparison.
The chapter also calls life's meaning a delusion because evolution has no goal. That conclusion needs a philosophical argument of its own. An evolutionary account of how people arose does not show that caring for a child or discovering something is worthless. We should separate felt pleasure, satisfaction with a whole life, and judgments about what makes a life worth living.
The future
Engineering our successors
Chapter 20 considers biological engineering, bodies connected to machines, and artificial minds. Harari asks whether technologies that alter human abilities might eventually produce beings so different that the name Homo sapiens no longer fits. This is speculation about a possible future.
Some capabilities are real. In 2023 the FDA approved Casgevy, which edits a patient's blood-forming stem cells to treat sickle cell disease. It doesn't edit embryos or establish a heritable new human lineage. Human engineering changes biological conditions; it doesn't abolish evolution.
Who gets to decide which abilities count as improvements, and who receives them? Treatment and enhancement can distribute power differently. Unequal access is a concern even if humanity's replacement never happens.
What the explanation leaves out
Shared beliefs need institutions
The middle of Sapiens follows money, empire, and religion as forces of integration. Its later chapters connect science with imperial expansion and credit: research needs support, rulers seek useful knowledge, and investors fund ventures in expectation of future returns. Cooperation has incentives and organized power as well as beliefs.
Harari includes coercion and the suffering of conquered peoples. Even so, calling money or empire successful measures their spread and durability before it measures their justice. A system can coordinate millions while exposing some of them to slavery or dispossession. Cooperation does not guarantee a benefit to everyone participating.
A broad synthesis makes these connections visible. But its explanation fits too much: equality and hereditary rank, charitable hospitals and conquest, all become shared stories. To explain why a particular order prevailed, we still need its history, resources, and enforcement. Shared belief alone cannot supply that history.
Progress
Power and a better life
David Deutsch's The Beginning of Infinity argues that better explanations expand what people can accomplish. Sapiens asks whom those accomplishments serve. These questions can coexist: a capacity to solve problems does not guarantee that people will choose humane goals.
Fewer children dying and less suffering are improvements we can evaluate without reconstructing a prehistoric happiness score. How people experienced a particular improvement is harder to recover, especially when none left an account.
Edition and evidence
Sources and what they support
The two block quotations use the 2014 English text. Its translation copyright is credited to Harari. Chapter and subsection locators avoid page differences between editions. The explanations and gallery entries are paraphrase or commentary. Study links support specific evidence checks.
Book, research, and image credits
Harari, Sapiens: A Brief History of Humankind. English edition, Signal / Harvill Secker, 2014. Chapters 2 and 6 supply the cooperation argument; 4 covers extinctions; 5 agriculture; 10 money; 12 religion; 14-16 science, empire, and credit; 19 happiness; 20 the future. Author's account and chapter references. Publication dates are supported by the Hebrew University record and English publisher record.
McBrearty and Brooks (2000).The revolution that wasn't, on the distribution of evidence for modern behavior in the African archaeological record.
