In 1977 I was president of a society, the ‘Grey Union’, at my South African state secondary school. One of my jobs was to organise an Education Week for the school’s seven hundred pupils, involving talks at morning assembly and lunch time. For one of these, I invited a young sociologist from the local University of Port Elizabeth to address the school assembly, the idea being that he would tell us about the latest sociological thinking on our country. After his speech he fielded a question about whether black people were naturally as intelligent as white people. ‘No,’ he said without hesitation. ‘IQ tests here and in America show they have IQs about fifteen points below ours. You can draw your own conclusions.’
I’d already formed a sceptical impression of what IQ tests really measured, and through my parents’ church connections I’d met enough black people who were so much cleverer than me to know that this could not be true. It would be very difficult for anyone to spend time with the wit and wisdom of, say, Desmond Tutu and draw the conclusion suggested by this young lecturer. My reaction was to double down on my dismissal of IQ as a means of measuring intelligence and to doubt that it reflected anything useful.
In retrospect, the sociologist’s claim shouldn’t have been too surprising. His university was led at that time by a member of a secret, race-obsessed, nationalist society, the Afrikaner Broederbond, and its lecturers tended to toe the line. Naively, I’d expected something different, and wondered how this young man had reached this obviously ridiculous conclusion. I didn’t realise that he was drawing on the discredited research of the American psychologist Arthur Jensen, the man most responsible for reviving racist psychology after the post-war lull. Jensen was celebrated in apartheid educational circles and I suspect that the many critiques of his methodology and conclusions that were already in academic circulation by 1977 were not on the University of Port Elizabeth’s curriculum.
I’ll discuss Jensen’s ideas in Chapter 12 but I mention him here because it was my first unambiguous exposure to what we now call race science or scientific racism. Before defining this, it is worth saying a bit more about racism more generally. It’s a newish term that was coined in the 1930s, took off in the 1970s and had its first definition in the Oxford English Dictionary, in 1989, as a synonym for the older term, ‘racialism’. The OED’s current definition is that it is a belief that the ‘members of each race possess characteristics, abilities or qualities specific to that race, especially so as to distinguish it as inferior or superior to another race or races’. Webster’s takes a different angle: ‘A belief that race is the primary determinant of human traits and capacities and that racial differences produce an inherent superiority of a particular race’. Wikipedia opts for the simpler ‘belief in the superiority of one race over another’.
All these definitions put the emphasis on belief, which is appropriate. It follows that a racist is someone who holds these beliefs; who embraces the idea that different ‘races’ tend to have different collective characters, personalities or potentials. I stress this essence because there is a view, often heard in the United States but less elsewhere, that black people can’t be racist because they don’t possess power (which parallels a view that women can’t be sexist because under the patriarchy only men have power). I believe this is wrong, and will discuss it further in Chapter 4, but for now I’ll repeat that racism is all about beliefs. Power is something different, although obviously racist beliefs held by those with power are likely to be more dangerous than such beliefs among the powerless. Just one preliminary example: anti-Semitism is a form of racism. A powerless person, regardless of race, who believes, say, that a secret cabal of Jewish bankers, politicians and industrialists controls the world and, as a result, looks askance at Jews, is a racist. The consequences of that racist belief would be very different, of course, if that anti-Semite had power (as in Nazi Germany).
Scientific racism is a variant of these beliefs. One might say it is the attempt to attach the categories of science to racist beliefs, to give them ballast, but one needn’t be that cynical. It is more likely to be the genuine belief that this is where science leads. As we shall see in Chapter 4, the eighteenth- and nineteenth-century scientists who believed the mental capacity of different races could be found by measuring their skulls or weighing their brains were perfectly sincere in their wholly mistaken views. Today we might say the same thing about those who believe, say, that different average IQ scores among different population groups tell us something profound about their innate intellectual potential. Regardless of motivation, such thinking fits squarely in dictionaries’ definitions of racism. This, incidentally, would be true even if such ideas were correct, although I will show in later chapters why they are profoundly mistaken; in essence, unscientific.
This raises an obvious but tricky question: is someone a racist if they hold the idea that different population groups have different innate, average intelligence? A few of those advancing such views are indeed happy to own up to racism. One of those is Richard Lynn, the University of Ulster evolutionary psychologist, who has no hesitation about calling himself a ‘racialist’, a ‘racist’ and a ‘scientific racist’.1 But most of those who advocate race science, including several who enthusiastically quote Lynn, deny they’re racists, preferring to view themselves as intrepid truth-tellers who follow science wherever it may lead. To say they are racists would put the likes of Steven Pinker, Andrew Sullivan, Jordan Peterson, Sam Harris and Nicholas Wade, along with older hands such as Charles Murray, in a particularly odious circle of hell. I would prefer not to go that far, because I do not know what goes on in their every secret place. It is perfectly possible that all or some of these men treat black, white, Asian and Hispanic people the same, perhaps even that they have close friends who are not white, and that their belief that some population groups are, on average, less intelligent than others has no influence on the way they treat individual people from any of these groups. What I will say, however, is that some of the beliefs they advance are indeed racist, and that the adjective ‘scientific’ does nothing to mitigate this verdict.
What would be some examples of contemporary scientific racism? I’ve already mentioned, in the foreword, Nicholas Wade’s views on innately tribalist Africans, enterprising Brits, bright but conformist Chinese and capitalistic Jews. I could add a few other prominent claims made by various university-based academics over the past decade or so: Europeans and Asians evolved to be more intelligent than Africans because of their exposure to ice age conditions 45,000 years ago; a gene variant that makes sub-Saharan Africans less intelligent than everyone else; the smartest people on earth today are Ashkenazi Jews, followed by East Asians and white Europeans and Americans; the dumbest are Bushmen and Congo Pygmies, followed by Australian Aboriginals and Ethiopians; poor people are poor because they’re stupid, which is why there are so many underclass black people; the prime cause of poor health all over the world is low IQ, which is why Africa suffers; infectious diseases have affected the genomes of Africans, making them less intelligent; sub-Saharan Africans haven’t evolved to possess a work ethic. We will tackle all these ideas head-on.
The complementary ideas of a link between race and intelligence and between race and character have long pedigrees, probably even longer than slavery and colonialism. But because such thinking is seldom aired in polite circles nowadays, it is tempting to think that, Steve Bannon aside, it is confined to the anonymous midnight trolls who furiously patrol racist websites, or the backwoodsmen of Confederate America, and that it is no longer something significant to bother about. But there are good reasons to bother because after a post-Holocaust lull, scientific racism has returned in a full-fledged, brazen form and its current alt-right wave is still building its momentum.
It is hard to pick a precise starting point but 2007 is as good as any. That was when James Watson, one of America’s greatest living scientists, a Nobel laureate and co-discoverer of the structure of DNA, attracted headlines for trumpeting his belief that black people were inherently less intelligent than white. Having previously advocated eugenic solutions to weed out less intelligent people, he started speaking out on race in 2000, when he announced there was a link between darker skin and higher libido. Seven years later he went significantly further, saying that the idea that black and white people shared ‘equal powers of reason’ was a delusion and that ‘people who have to deal with black employees find this is not true.’2 Subsequently, following an outcry, he apologised but made it clear that he hadn’t changed his mind, noting that the desire of society ‘to assume that equal powers of reason are a universal heritage of humanity’ was ‘not science and that it was not racist to question this’.3 Watson has since been quoted as suggesting that Jews are smarter than everyone else, and that Indian Brahmins had been naturally selected for both intelligence and servility and East Asians for conformity.4 In 2019, in a PBS television documentary on his life, he said his views were unchanged, explaining that ‘there is a difference on the average between blacks and whites on IQ tests. I would say the difference is genetic.’5
Since 2007, ideas such as Watson’s have begun to proliferate on the Web, often finding their way into the mainstream media. They were given a huge boost by the rise of the American alt-right in the wake of Donald Trump’s election. Watson aside, their purveyors are usually people outside the ‘hard’ sciences; a mixture of evolutionary psychologists, journalists, social theorists and media personalities, who believe that different population groups have different innate mental and emotional assets and who feel that these ideas are being suppressed by the political correctness of a self-serving liberal elite.
This group’s first contention is that our brains, like our bodies, have continued to evolve in response to different environmental conditions, leading some ethnic groups to develop superior intelligence and different character traits. Some confidently predict that significant genetic markers related to brain power will be found to differ substantially between races. The reason: the extreme challenges created by ice ages in Europe were not faced by those living in warmer climates, and these cold challenges prompted further evolution of the brain after groups of humans left Africa 50,000 years ago. Richard Lynn, for example, wrote that in ice age Europe ‘less intelligent individuals and tribes would have died out, leaving as survivors the more intelligent.’6
Second, they claim their perspective is borne out by archaeology. Evidence cited for this conceptual leap includes the flowering of cave art and other creative innovations in parts of Europe, some of it dated to be more than 40,000 years old. Some, such as Nicholas Wade, have argued that the diverging evolution of character traits and of intelligence has continued even over the last thousand years.
Third, they claim proof of hardwired racial differences in intelligence comes from IQ tests, which they believe can measure innate ‘general’ intelligence. We are told that the reliability of these tests as an accurate measure of intelligence is proved by studies of twins, which show that IQ is highly heritable. There is indeed variation in IQ scores when assessed on a population basis. For example, Asian Americans have higher average scores than white Americans, who have higher average scores than African Americans. Some USA-based writers – who include media luminaries such as the evolutionary psychologist and popular science author Steven Pinker – suggest that this racial variation in IQ proves the point that the brains of different groups have evolved differently. They frequently add that those who ignore this evidence are obdurately turning a blind eye to scientific fact.
One area of confusion relates to the fact that in certain ways human bodies have continued to evolve over the millennia. This can be illustrated by looking at diseases that are more common among some ethnic groups than others, such as sickle cell anaemia among those with sub-Saharan ancestry, Tay–Sachs disease among Ashkenazi Jews, and so on. Some populations have also evolved certain physical capacities, such as survival at altitude and, more widely, the ability to digest lactose. Other examples include skin colour, eye colour, hair type, the presence or absence of an eyelid fold, average height, bone density and body type. Today, scientists can identify a person’s regional historic origins and population mix by examining genetic markers in their DNA. The recent capacity to sequence whole genomes has expanded this ability, for example the discovery that around 50,000 years ago early human migrants to Eurasia interbred with Neanderthals, and those in New Guinea, Australia and the Philippines with Denisovans (another, recently discovered, extinct human group).
Despite these differences, all humans are remarkably similar, in the sense that there is very little genetic variation among us. The small amount of Neanderthal or Denisovan DNA possessed by non-Africans appears to make little physical or other difference to them, although Denisovan DNA does seem to have contributed to helping Tibetans live at altitude and Neanderthal DNA to have helped Europeans live in cold climates. Because of our relatively recent common ancestry – the first humans like us emerged in Africa just 300,000 years ago – humans share a remarkably high proportion of their genes, compared to other mammals. The single subspecies of chimpanzee that lives in Central Africa, for example, has significantly more genetic variation than the entire human race. Richard Dawkins, the British ethologist, put it like this: ‘We are indeed a very uniform species if you count the totality of genes, or you take a truly random sample of genes.’7
The problem with drawing analogies between lactose intolerance and human intelligence is that we are not comparing like with like. Intelligence is complex, and not just because it is an abstract notion that is hard to define and comes in a variety of guises. More than ten thousand genes are implicated in the development and functioning of the brain, and neuroscientists believe that a network of perhaps thousands are implicated in intelligence. Scientists may be able to identify scores or hundreds of genes that appear to have a limited bearing on performance in IQ tests, but the quest for a single intelligence gene, or even a handful, has proved quixotic. Even if slight distinctions were one day established, it is highly unlikely that these would follow the traditional boundaries of ‘race’.
The American palaeo-anthropologist Ian Tattersall, widely acknowledged as a world expert on the Cro-Magnons (early European-based cave-dwelling humans), says that long before humans left Africa for Eurasia they had reached the end of the line for significant evolution of their brains. ‘We don’t have the right conditions for any meaningful biological evolution of the species,’ he said. ‘In order to get the fixation of evolutionary novelties … you need to have small isolated populations. Large, interbreeding populations are just not the right place for innovations to become fixed.’8
Contrary views, such as James Watson’s, that claim significant racial or geographical genetic differences in intelligence and character, are dismissed by most biologists focusing on genetics and human evolution. Craig Venter, the American scientist who led the privately funded effort to decode the human genome, noted in response to Watson’s outburst that ‘skin colour as a surrogate for race is a social concept, not a scientific one.’ And he added: ‘There is no basis in scientific fact or in the human genetic code for the notion that skin colour will be predictive of intelligence.’9 Later, in his autobiography, he went further, dismissing the concept of race altogether by saying it had ‘no genetic or scientific basis’.10
There is also no evidence that icy European weather prompted further evolution of the brain. We could just as well claim that the heat of Africa, Asia and the Middle East had the same nudging effect by pointing to the early emergence of agriculture, writing and city states in the warmth of Mesopotamia, China, Egypt, Nubia, Anatolia and India. And the focus on European cave wall paintings as proof of superior intelligence is also highly selective. Cave wall art emerged in Australia and parts of Africa at roughly the same time as in Europe, but artistic expression started far earlier. Caves in the Cape province in South Africa have evidence of symbolic geometric art dated at 77,000 years old, and of the use of carefully blended paint and sophisticated tool-hardening techniques dated at 100,000 years old. Both achievements would be impossible without recourse to language. Other evidence of modernity from this period includes beads used for adornment, fish hooks, arrow heads and animal traps, and signs of land division, long-distance trade and burial of the dead. It seems clear that the humans who left Africa at least 70,000 years ago, and eventually ended up in Australia, or who headed towards Asia and Europe 15,000 years later, must have had brains capable of symbolic, artistic, self-conscious behaviour, of scientific experiment and future-planning. In all probability, they were humans with brains very much like ours.
The idea that the proof of racial differences in intelligence can be drawn from IQ tests is also spurious. Such tests measure the capacity to cope with a certain kind of abstract logic; they are therefore useful to assess aptitude for certain jobs, university courses and so on. However they do not, and cannot, measure general intelligence. In fact, ‘general’ intelligence doesn’t really exist.
And yet claims of a link between brain power, IQ and race roll on. The most prominent and persistent over the last decade or so have related to the idea that Ashkenazi Jews are inherently more intelligent than anyone else (rivalled only by those of East Asian origin, we’re told). I will devote a whole later chapter to this idea, partly because it is currently the smiling face of race science: everyone knows Jews are smart, so what’s the problem? The problem is that it is a cat’s paw issue – if Ashkenazi Jews are accepted as being naturally smarter than everyone else then it is only logical to say that other groups are naturally dumber. It is perhaps for this reason that it is promoted with such vigour by advocates of race science.
Those currently pushing the Ashkenazi fallacy include evolutionary psychologists, anthropologists, journalists and YouTube stars. But even the finest scientific minds are capable of profound errors when tackling subjects beyond their calling. James Watson’s DNA-unravelling Nobel Prize-winning colleague, Francis Crick, believed that life on earth was directed by an advanced extra-terrestrial civilisation. And like Watson, he believed blacks were less intelligent than whites. And we could back-pedal all the way to the grandfather of them all, Isaac Newton, whose immense contribution to science did not hold him back from devoting years of attention to finding the Philosopher’s Stone, to the Biblical Apocalypse and to occult studies. In a sense, the determinedly contrarian, octogenarian Watson was in fine company when, in addressing an area of learning way beyond his own expertise, he came out with his dubious views. Expanding on his notion that the brains of Africans and non-Africans evolved differently, making the former less intelligent, he argued that there is ‘no firm reason to anticipate that the intellectual capacities of peoples geographically separated in their evolution should prove to have evolved identically’.11 In the chapters that follow, I will show that there are, in fact, firm scientific reasons to anticipate precisely this. Or at least not to anticipate substantial differences in the evolution of their brains.
Recent research in genetics, evolutionary theory, archaeology, palaeontology, biological anthropology, psychology, sociology and IQ studies all pulls in the same direction when it comes to understanding human intelligence: it might be influenced by a number of factors including the genes inherited from parents, in utero experience, health and nutrition, early education, wealth or poverty and, in particular, exposure to abstract logic in your formative years. But not by ‘race’.
It is now forty years since I heard an apartheid-era sociologist telling my school assembly that we should draw our own conclusions on why there were racial differences in average IQ scores. If he’s still around today and following the evidence where it leads, he should come to the opposite conclusion: that there is a complete absence of evidence that race is important when it comes to innate intelligence potential. The chapters that follow explain why.