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However, the more people aggregate in groups, and the more they engage in complicated social endeavors, the more such feedback gets decoupled from immediate experience. Eventually we reach the other extreme: an economic system so complicated that the greatest minds cannot decide whether less government spending or more government spending is the way to improve it; a world so complicated that we cannot decide when to wage war and when to sit out a crisis. The farther feedback is from immediate experience, the more the distorters of accuracy and rationality can build up. In the first half of this book, I surveyed the limits of reason. Heuristics, biases, and emotions—especially passionate fear and hate—intervene at every step. Also, people naturally search for the simplest and most usable explanation. People overuse Occam’s Razor—which Occam himself used to prove the existence of God; he thought it simpler to assume a conscious humanoid Creator than to assume a universe of impersonal laws. (He thus used two heuristics that set him adrift: the idea that agency is somehow “simpler” than natural law, and the Kantian “principle of assimilation,” which led him to assume God would be a rational man writ large.)

The result is seen in such things as the Greek devotion to a world made up of, at most, four elements (earth, air, fire and water), and the extreme difficulty that European science had at shaking this view in early-modern times.

When people’s plausible and wrong explanations are heavily conditioned or distorted by fear and hate, then they become truly fixed, to a level of irrationality that frequently crosses into the paranoid. Currently, about half of Americans, on both left and right of the political spectrum, believe that global warming is a vast deception created by scientists, and many explain this by assuming that scientists are power-mad and want to take over the world. Similar paranoid fantasies about the economy, education, and most other topics are the stuff of politics; it is impossible to turn on the radio without hearing some wild theory that could not sell in a world not dominated by fear and hate.

On many occasions, more likeable emotions—hope, courage, responsibility, love—can affect and distort knowledge too. They cut less ice politically, but they have much more effect than hate on daily life at the human scale.

Thus, other things being equal, culture gets more and more decoupled from reality as society gets bigger and more complicated. Ordinary cognitive processing errors, and violent emotions, are the distorters.

However, other things are usually not equal. Larger and more complex societies also may have more ways of checking, and thus of preventing more. They may even invent institutionalized “science,” and thus have a huge generator of accurate information and theory to balance out any natural human tendencies to distort.

The result: every anthropologist knows that local knowledge within a hunter-gatherer or small-farm community is far more intense and grounded than anything science can offer. My Maya friends in rural southeast Mexico know incomparably more about their farms, forests, and families than I or any other outside scientist will ever know. But they cannot place all this knowledge in wider scientific contexts. They cannot explain their successful selection of the best seed by Darwinian theory, or their knowledge of the hills and valleys of their environment by dynamic geomorphology. They infer, or used to infer, that their world is the product of interactions of gods and demons—the most simple-seeming and the most emotionally compelling explanation they could create. I, on the other hand, can more or less explain natural and artificial selection and an ancient karst environment, but, even after years of fieldwork, I am a helpless babe in the actual on-the-ground woods.

Similarly, my community, Chunhuhub, is a very well-run town, because everyone knows everyone else, and is not prepared to take much grief from them. My country, and alas Mexico too, are very ill-run indeed, partly because they are too big for such close feedback. In the absence of knowledge, people naturally substitute emotion, especially group hate.

As usual, language is a good model. Language is not a frozen array of big words. It is a fast-changing way of interacting—of communicating about food, dogs and cats, children, neighbors, gardens, and, very rarely, philosophy. New words and grammatical turns constantly appear and disappear—or, sometimes, they stay around. “Dog” appeared out of nowhere, being first recorded in 1053 A.D. “Boy” and “girl” similarly appeared out of nowhere about the same time. They are not related to corresponding words in other languages.

Emotion changes language much less than it changes belief about economics or medicine, however. No one except a few English teachers really got excited when English effectively lost the subjunctive mood (well within my lifetime). But even language undergoes emotion-driven changes. The word “love” has different connotations now from those it once had. “Dog” was a vicious insult in my youth (especially in the form “son of a bitch,” bringing one’s sacred mother into it) but is hardly heard in such capacity now; we love dogs more and fear strays less.

This is not to say that language is totally new every year. English today is an obvious direct descendent of the English of 1053, though no one without special training can now read 1053 English. We have invented or borrowed countless words since then, changed pronunciation drastically, and even changed grammar substantially. Change thus happens slowly, imperceptibly, gradually. We cannot pinpoint the time when Chaucer’s English turned to Shakespeare’s, or when Shakespeare’s turned to ours. Still less can we say who did it. Chaucer and Shakespeare had wholly disproportionate effects on language—Shakespeare in particular launched countless turns of phrase—but in the end the changes were due to billions of individual speech transactions. Few were memorable, fewer were obviously transformative, but the language changed.

Other realms of culture, like economic organization and medicine, change faster. The medicine of modern England is really different from that of 1053. Even there, some continuity exists. Assumptions about body, person, drugs, and wholeness carry on for millennia, slowly changing.

The small-scale societies that anthropologists study were supposedly more conservative and frozen in time. Archaeology and repeat-visit ethnography have revealed that this is not the case. In more than 20 years of studying the highly traditional Maya of western Quintana Roo, Mexico, I have seen their culture change considerably. The Maya language has incorporated and invented new words for new things, including weeds and cultivated plants that have come since I started working there. This is not just a matter of the “modern world” impinging; archaeology shows dramatic and dynamic changes throughout the thousands of years that Maya have lived in Quintana Roo.

Pierre Bourdieu spent his career arguing brilliantly and forcefully for this view of culture as negotiated practice (see esp. Bourdieu 1977, 1990). Alas, with his death, German idealism returned in full force. It even dominates my own field, environmental anthropology, in spite of what should be obvious: people’s views of the environment have a great deal to do with their everyday working interactions with it. Yet, thanks to academics who appear never to have been near the field, a view has arisen that views of environment are pure cultural construction, developed in a vacuum and universally shared by those in the culture in question.

Historians and geographers are the most prone to write that way, since most anthropologists have actual field experience, but many anthropologists fall too far toward the idealist position. For instance, Paul Nadasdy, in an otherwise excellent book, Hunters and Bureaucrats (2004), writes as if the hunters (the Kluane First Nation) and the bureaucrats were two separate populations, each one homogeneous and dominated by big ecological ideas that are apparently fixed and unchangeable. He is, of course, aware that the Native people have changed in the last generation, but writes as if they were “without history” (to use the famous ironic phrase of Eric Wolf, 1982) before that. Similarly, he seems to take biology as having changed its outlook little over the years. In fact, biologists 40 years ago thought quite differently from the ones he describes, and those 100 years ago were very different indeed.

One observes similar disconnections in studies of medicine. Clinicians look at presenting symptoms—empirical, pragmatic reality—and try to put labels on them. Inevitably, the labels do not always fit. Many a vague condition with confusing symptoms gets forced into a very ill-fitting slot (on such changes and the motives behind them, see Bowker and Star 1999; Foucault 1973). This is less true today than it once was, at least for physical conditions, but mental problems are still underspecified and underdetermined by the rather arbitrary categories in the manuals. Every new edition of the American Psychological Association’s Diagnostic and Statistical Manual involves a huge and not always friendly dust-up among psychologists trying to classify disorders. Clinicians have recognized the ambiguity of nosological entities at least since the Greek doctor Soranus commented on it in his Gynecology around 100 A.D. (Soranus 1956), but scholars are slow to catch up (Bowker and Star 1999).

Historians of medicine often look at the labels, and try to study medical history as if the labels were the reality. This leads to incredible confusion. “Melancholy,” for instance, originally meant a condition involving “black bile” (Greek melancholia), the dead blood cells and similar wastes that clog the bile duct in cases of malaria and hepatitis. People with that condition were miserable, so it was thought that black bile caused sorrow and other mental conditions. The Greeks thought that black bile itself was caused by too much coldness and dryness in the body, which led to some wildly irrelevant treatments. Then, later, the term then came to refer to any disturbed and unpleasant mental condition, including schizophrenia and the like. Still later, it became fixed on ordinary sadness. Historians unaware of these changes in usage have made some very strange statements about ancient melancholy.
Culture and Warnings
“If you make people think they think, they’ll love you; but if you make them really think, they’ll hate you.” --Old Man Coyote
Culture being about practical matters first of all, the most obvious reason for culture change is learning new useful information. English settlers in America had to add to their cultural knowledge a vast store of warnings about mountain lions, poisonous berries, rattlesnake habitats, and so on. There is much evidence that children learn these warnings more easily than other knowledge. I know many adults (not to speak of children) who cannot identify any wild plant except poison oak or poison ivy. Culture includes endless rules of thumb about staying safe: walk against traffic, don’t feed the bears, dress warmly.

Sometimes these rules go far beyond need, into realms of what can only be described as excessive caution. Many cultures have a rule against insulting bears or other savage animals, or even mentioning their names, in the forest; they might hear and come after you. Such things have caused linguistic change. The English word “bear” is derived from an old Germanic euphemism meaning something like “brown one.” The Indo-European root for “bear” (an echoic rendering of a growl—seen in, e.g., Latin ursus) became completely lost in the Germanic languages. People were scared to say it.

Most cultures encode various “vestiges”: apparently arbitrary and ridiculous ideas that once had functions, though these may now be forgotten. A standard anthropologists’ example is sleeve buttons on coats. They were there to attach gloves. This has been forgotten so long that an old joke claiming they are there to keep kids from wiping their noses on their sleeves is now often taken seriously. (No one stops to think that the buttons are on the wrong side for that.) Sheer cultural inertia keeps the buttons there, as a “vestige” in the classic sense of the term. Our retention of a few Germanic weak plurals (oxen, children…) is another vestige. Anthropologists point out that such “vestiges” always have some function, however trivial; today, sleeve buttons mark the style of the coat. But the functions now observed are too trivial to have led to creating such usages.

In fact, a huge number of ordinary customs are not really worth maintaining, in strict economic or ecological terms; we do them out of habit and because they still have some value. Wearing clothes in California’s summer climate is one example constantly intruded on me. How much more reasonable to follow the Native Americans, and the ancient Greeks in a very similar climate, and wear nothing at all, or at most a loose robe to avoid sunburn? But (except at the beach) I am forced to wear clothing developed to keep off the constant soppy cold of northwest Europe, even when the temperature passes 120 F. Californians dress down to the minimum, but—except on a few beaches—can go only so far before “modesty” interferes. Thus does culture constrain rationality in the name of social belonging.


Cultural Creativity

Culture is also aesthetic, to a degree not usually recognized by anthropologists, though this was the great theme of Franz Boas’ classic writings. Culture is communicated through art, music, poetry, dance, feast foods, architecture, body motion, and other expressive forms, not just through speech and ordinary action. The entire realm of aesthetic feelings—so neglected by psychologists and social scientists—is absolutely critical in culture.

No one now living was present at the creation of the world, so all creation myths must be deductive and declarative knowledge—not experiential, even at nth hand. They are based on experience, but they are logical deductions from it. Many moral rules are similarly deduced from religious principles and stated in oracular form; the Ten Commandments, for example. But moral rules must ultimately stem from, rest in, and reproduce in daily social practice. If they do not, they are dead letters.

Thus, big cultural ideas, even the interpretations of canonical origin myths, are always subject to change, according to experience.

The broader shifts in Judaism, Christianity, Islam, and other religions over the last couple of millennia need no special elaboration. They are profound beyond all reason. The Ten Commandments may have been graven in the rock, but they are subject to annual reinterpretation.

In short, culture changes—no matter how “cast in stone” the principles.


Explaining Culture Change

Culture change comes when needs and wants progressively distort earlier customs. Rarely is there a clean break with the past. Sometimes, the changes seem rather like the mistakes that accumulate in children’s memory games when stories are passed on; the changes in the word “melancholy” are of this sort. At other time, norms, roles, and social codes relax over time because they are no longer useful and thus seem burdensome.

This is true of the sexual codes elaborated in a time when poverty and lack of birth control technologies made unwanted pregnancy a real fear. The Pill changed life, and it was not the only factor. At other times, norms and codes get stronger. I have lived through a major sea change in levels of civility toward members of different ethnic groups. Many people of my generation still curse the “political correctness” that stops them from using the “n word” or telling obscene “Jew jokes.” But my children and their children have grown up in a world where such verbal faults are almost unthinkable. The fact is that during my lifetime pregnancy has become more controllable and manageable, while ethnic and religious hatreds have become more scary and dangerous. Culture has changed accordingly.

One of the worst mistakes made by the cultural essentialists is taking any and all cultural rules to be absolute, hard-wired, inflexible codes. In fact there is a huge difference between, say, the rule that we say “hello, how are you?” and the rule that we Americans are “individualist.” The former is a concrete, universally known, widely observed politeness ritual. The latter is a vague generalization—true for some people in some ways, true for others in other ways, and not at all true for yet others among us.

Yet, from reading the cross-cultural psychologists, one would think that they were the same kind of mindlessly followed, clear, straightforward, universal rule.

Even greeting rituals change with time, and certainly individualism does. It once meant going out alone to conquer the wilderness; it now more often means comparing notes on different preferences in video games. It once meant choosing one’s own spouse, within a narrow social group and a tight framework of sexual codes. It now means choosing whether to have a spouse at all, within a framework that allows far more individual variation in sexual behaviors.

Cultures can rapidly decline due to moral cascades. When corruption is tolerated, imitating it pays, while being conspicuously honest leads not only to economic failure but to genuine danger, since corrupt politicians tend to have goon squads. The speed with which this can take down a culture is often very sobering; Russia after 1989 and Mexico in the early 2000s were devastated by runaway organized crime and government corruption in only a few years. Reversing such things remains difficult; revolutions sometimes work briefly, but often simply make things worse.
These enormous, often unpredictable, and often rapid changes arise from small interactions. (In this and what follows, I agree with, and draw heavily on, Pierre Bourdieu, esp. 1977, 1990, and E. P. Thompson 1963.) Occasionally some huge global force drives profound and unavoidable alterations. The Mongol hordes changed the world in the 12th and 13th centuries. The Little Ice Age changed it more in the succeeding half-millennium.

However, such things are rare. Many a huge phenomenon is merely the result of many small chances. The Black Death of 1346-48 was nothing but a succession of fleabites. It began (we believe) when a few fleas happened to jump off a few Central Asian rodents onto a few unfortunate wanderers. It spread by individual interactions between rats, fleas, and people. The cumulative global effects were catastrophic, but they arose from myriads of tiny events.

Similarly, the two World Wars of the 20th century began with individual governmental and diplomatic decisions. The world did not wake up one morning and collectively shout “We want war!” Nor, pace the Marxists, is there much evidence that irresistable transhuman economic forces made those wars inevitable. Something like World War I would have happened, surely, but without the assassination of Archduke Ferdinand at Sarajevo it might have come later and been milder.

Contingency thus often rules history. As Pascal said, “Cleopatra’s nose: Had it been shorter, the whole face of the earth would have been changed” (Pascal, tr. Roger Ariew; 2005:6). She would, presumably, have been less attractive to Caesar and Mark Antony, and without their successive fatal attraction to her, the Roman republic might have been restored and maintained Rome as the center of the world. The Kennedy assassinations, the agonizingly close (and shamelessly manipulated) 2000 American election, and many other turning points in history could easily have gone differently. There are indeed broad currents and trends in history, and the Marxists still have a case about the overdetermined nature of much economic change, but the fact is still there: culture usually changes by tiny increments, and a trivial accident can decide the fate of an empire.

The same could be said for economics. Nobody really set out to invent capitalism, and even Marx at his most revolutionary admitted that the “bourgeois revolutions” of the late 18th and early 19th centuries were mere episodes in a long, long process.

Even when people set out to transform the system, and when they were subject to broad economic forces making it appear necessary to do so, the actual changes were gradual and subtle. A very few inventions have had truly world-altering effects: phones, cars, computers. None was a sudden product of an individual, and all were more or less independently invented by several people at once. In operationalizing the first telephone, Bell beat Edison by a month. Thanks to near-simultaneous inventions, arguments still go on over who made the first automobile and the first airplane. Even Darwin’s theory of evolution, less constrained by technology, was independently developed by Alfred Russell Wallace, and would no doubt have been invented by someone even if neither Darwin nor Wallace had done it. The search for inventions that were truly radical, truly transformative, and truly unique to one brilliant inventor is a fairly fruitless one.

The “great man” theory is not totally wrong—life would be different today if we had never had Napoleon, or Einstein, or Pasteur. Indeed, Marx is perhaps the best case of a single individual with a wide influence, in spite of his insistence that history was the product of vast transhuman forces! My point is thus not to deny individual agency, but to spread it around. We are all “great” men and women. We all change culture. Leslie White, A. L. Kroeber, and others could be believed, when they maintained that culture was normally changeless, only because change is so common and unobtrusive that we do not notice that we ourselves are changing it every day, by countless tiny interactions.

Luxury, not necessity, is the mother of invention. Those who literally need an invention can’t afford to make it; inventing takes capital, or at least time and work. Inventions usually begin as toys or useful profit-maximizing devices. Only later do they become mass-produced, easily available, and within reach of the ordinary user. This was true even before money and factories. Developing a new crop strain or spear-making process was monumentally difficult under prehistoric conditions. New linguistic usages come free, but have to be popularized by thousands or millions of repetitions. A linguistic turn that simplifies speech will propagate, but it may make things more difficult in some unexpected way.

Individual agency is constrained by technical, economic, and environmental realities, but not truly determined. This is proved by the rapid divergence of dialects, technologies, and lifeways that occurs when a group of people splits up. The Dutch in the Netherlands and in South Africa, the Polynesians on their various island groups, and other cases occur to mind.

As we have seen, structure emerges from these interactions, and is thus a dynamic thing. Anthony Giddens in The Constitution of Society (1984) refers to the process as “structuration,” a useful neologism.

People want above all to be social, so changes that facilitate sociability always get prior attention. This means, first and foremost, any new and improved moral standards that facilitate interaction within the group—and, usually, that increase hostility and hostile solidarity toward the nearest or most salient other group.

Diffusion

When explorers (including Lewis and Clark) crossed North America,they collected local Native American folktales. Some of these produced a dawning sense of familiarity: they realized that the tales they were collecting were French. Some were stories from the endless cycle of tales about Little John (petit Jean) who succeeded through cleverness in marrying the king’s daughter. Among Native Americans, the king often became a chief, his gold became fine fur, and his castle was a longhouse, but the stories were the same. These tales had come originally from French-Canadian trappers, but had caught on, and had been passed from group to group a thousand miles ahead of the French (see Thompson 1919).



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