Book Review: The Ten Thousand Year Explosion (2009) by Greg Cochran and Henry Harpending

October 27, 2014


I have a feeling most people don’t read reviews, but with some books I still think it’s worth making a little noise. Books like The Blank Slate by Steven Pinker, The Nurture Assumption by Judith Rich Harris, and The Righteous Mind by Jonathan Haidt. And now this one, so yes, it’s kind of a big deal. Many readers of this blog are no doubt already familiar with it, but since some probably aren’t, and it has been ignored by most of the media, I feel I should throw my two cents in.

The Persistence of Blank Slatism

The authors, physicist Greg Cochran and anthropologist Henry Harpending, challenge a common view among both the public and in Academia that evolution ended some 50 thousand years ago after the exodus out of Africa, or that it’s too slow to have any meaningful impact on humans within that time period. For that reason we must, they claim, be the same biological creatures as we were back then. As a consequence of this view, the cultural diversity that we see today and throughout history must also be unrelated to biology. They quote the late biologist and popular science writer Stephen Jay Gould who sums up (and embraces) this opinion,

“Everything we call culture and civilization we’ve built with the same body and brain.”

Most of his readers gladly accept this as the truth. It is after all the Blank Slate that has dominated Western thought on human nature for the last 400 years or so that claims we are all built of the same stuff, we all share an incredible ability to change, improve, and evolve. Steven Pinker did some damage to this idea but most people who have read him seem to have landed in a half slatism, admitting they were wrong but only half wrong. In psychology, this is known as anchoring: people don’t change opinion to fit the evidence but meet the evidence half way. And ironically you can be as anchored in thinking you’re a free spirit as in any other point of view.

But “the same body”? Are there Japanese people who can be mistaken for Scandinavians? Are there Peruvians who could pass themselves off as Nigerians?

More likely, as the authors argue, is that when leaving Africa humanity spread to various different environments, each with its own unique selective pressures. East Asians (to be) who passed through the extremely cold climate of central and northern Asia got shorter extremities. They and northern Europeans became paler as they were less exposed to the sun and they lost the ability to retain salt while sweating as they sweated less in their new environments. The people of the Andes and Himalayas became adapted to high altitude, and so on.

In short, our bodies are not the same. There are plenty of differences that are obvious adaptations to new environments giving rise to slightly different variants of Homo sapiens. And there are no supernatural elves guarding the blood-brain barrier either; the brain, for all its sophistication and complexity, is still part of our body, so anyone seeking the truth about human nature must at least entertain the possibility that evolution may have produced mental, biologically based group differences.

The Upper Paleolithic Revolution

There is little doubt that something big happened around 45 thousand years ago. At this time all sorts of innovations pop up – bow and arrow, fishnet and fishhook, cooking, rope, basket, textiles. Other novelties such as art, music, trade, and ritual burials indicate that there was a sudden and fundamental shift in human thinking, away from the day-by-day living of roaming bands, towards a more reflective, planned and organized way of life.

This abrupt change is hard to understand in terms of natural selection as there is very little time and no signs of strong selective pressures. In fact it seems so hard to understand it that many scholars deny it altogether. Instead, they argue for a gradual development by showing cultural artifacts that predates that of the Great Leap Forward, as it’s sometimes referred to. But I think it’s clear that they make their case more with words than with actual evidence. The extent to which they ascribe ingenuity and artistic qualities into the artifacts predating the Great Leap is similar to how some mothers will praise the scribblings of their children. As geographer and science writer Jared Diamond pointed out in another interesting book, gradualists have a tendency to give fancy names to early primitive tools as a way of creating an appearance of continuity,

Early stone tools vary in size and shape, and archaeologists have used those differences to give the tools different names, such as ‘hand-axe’, ‘chopper’, and ‘cleaver’. These names conceal the fact that none of those early tools had a sufficiently consistent or distinctive shape to suggest any specific function, as do the obvious needles and spear-points left by the much later Cro-Magnons. Wear-marks on the tools show that they were variously used to cut meat, bone, hides, wood, and non-woody parts of plants, but any size or shape of tool seems to have been used to cut any of those things, and the tool names applied by archaeologists may be little more than arbitrary divisions of a continuum of stone forms.

So most likely there was a Big Leap, and a corresponding biological leap that enabled it. But what kind of biological change could have such a dramatic effect?

The Neanderthal Within

As I said earlier, natural selection is not a likely candidate. The change is just too large and rapid, even if the new environments presented strong selective pressures and humans had lots of pre-existing genetic variation to work with. And clearly the new environment did not set the Neanderthals already living there on a highway to any kind of cultural revolution.

Instead the authors suggest that the change was caused by interbreeding between the Homo sapiens leaving Africa and the Neanderthals who lived in Europe and Asia. These two species split up some half a million years ago and Cochran & Harpending point out that no primate species have split completely in such a short time. And as human population genetics shows, people who live next to each other will inevitably mix to some extent. So common sense dictates that interbreeding was very likely.

This way Homo sapiens could have picked up a number of advantageous gene variants almost instantly. Most likely some of these variants relate to language skills (it’s very hard to think of something like trade without some kind of language). One such candidate gene is the FOXP2 that involved in speech, another suggested by the authors is MCPH1 that regulates brain size, as these both have new versions that roughly fit the time when Homo sapiens met Neanderthals and the cultural explosion that followed.

Since this book was written in 2009, you may wonder how well the theory holds up in view of current evidence. Well, recently gradualists have seized on a piece of depictive cave painting in Sulawesi, Indonesia, estimated to be around 35 thousand years old. They argue that this find somehow makes their case, but I honestly can’t see how it would do that. It leaves plenty of time for Homo sapiens to leave Africa, pick up the crucial Neanderthal gene variants in the Middle East or Europe and then migrate to Southeast Asia. And fact remains that advanced artifacts, such as depictive paintings, are still only found in times and places where people are likely to have Neanderthal admixture.

Meanwhile the evidence for interbreeding, doubted by gradualists like anthropologist Sally McBrearty, is now pretty solid. Recent studies also indicate that the authors were slightly off regarding the time line as it appears that interbreeding happened just before the window of opportunity would have closed. The FOXP2 is also ruled out as a Neanderthal contribution to contemporary humans. But the main point is that it did happen and that and non-Africans (Neanderthals were never in Africa) worldwide now have a few percent Neanderthal DNA as a consequence. So thus far, their theory is holding up pretty well.


This, however, isn’t even the main point of the book. The Upper Paleolithic Revolution is just the starting point of a new chapter in human evolution. Cochran & Harpending argue that the cultural innovations that emerged around 50 thousand years ago created selective pressures that were much stronger than those already in place so that we evolved faster than before. Sure, innovations had no patents back then so they were accessible for all. But not everyone was equally skilled at using them. If you’re good with a bow and arrow you’ll shoot the game from a safe distance, if you’re less skilled you’ll have to get closer and take the higher risk. But that would still be preferable to getting up close and bludgeoning it to death with a club, which seems to have been the Neanderthal way.

Language, as the authors point out, may well be the most important cultural innovation of them all, and no doubt one creating an enormous selective pressure. With good language skill you can excel at trade, you can convince, seduce, and deceive as well as detect deception. You can make detailed plans together with others. All of this confers obvious fitness – in proportion to your skill level. And thus far we don’t know of any skills that aren’t highly heritable. So if you agree that language and other cultural innovations have been of great importance to our success and survival in our recent past, then you must also agree that the genes behind the corresponding skills would have been selected for in proportion to that success. These skills then changed how we think which must have led to further innovations, “Men made better tools and then, in turn, were reshaped by those tools over many generations.” This of course must have been going on since the dawn of humanity. But with the Upper Paleolithic explosion the process shifted gears.

Genetic Evidence

As plausible and common sense as this sounds, the authors also offer more direct evidence of recent selection. For instance that which is based on a phenomenon called recombination. Thing is, we don’t inherit single genes, instead chromosomes from our parents are cut into 2-4 pieces and half of these pieces from each parent are then put together – recombined – to make our own chromosomes. As the cuts are few and the chromosomes contain enormous stretches of DNA, it’s unlikely that a cut will be anywhere near a single gene. So when a favorable mutation starts spreading through a population its closest neighbors usually tag along, like the entourage of a rising star. Together they make up a characteristic pattern called a haplotype. The more advantageous the mutation is the more common the haplotype will become. But with every generation that passes the cuts in the chromosomes will reduce the length of the haplotype so that fewer and fewer genes around the mutation will be shared in the population. So while fitness is indicated by how common the haplotype is, age is indicated by its length (the longer, the younger).

This means that common and long haplotypes can only exist if there is still strong and recent selection. This is for instance the case with lactose tolerance among people of European ancestry, which is only a few thousand years old. But according to the authors, recent studies show plenty of long and young haplotypes, some of which have reached 100 percent frequency in their populations. This can only mean that there is both strong and recent selection on a large scale. So evolution is still going strong

They offer other types of evidence too, supporting the idea that the rate of evolution is accelerating, but this is the part I found most convincing.


Unlike the Upper Paleolithic Revolution, agriculture was a single innovation that emerged some 12 thousand years ago. But its impact on the course of evolution was probably at least as big. It increased the world population from ca 6 million to 600 million by the time of Christ. As mutations are proportional to the size of the population this means a hundred fold increase of new mutations to speed up evolution even more. But like any innovation promoting fitness it also created a selective pressure benefitting the most skilled farmers.

But it also meant a new diet, based heavily on grain. While more people could be fed this way, the diet itself was low on protein and other nutrients. Average height dropped almost five inches with the introduction of agriculture. This meant that any mutations that would somehow increase access to protein would be selected for as was the case with those rendering owners lactose tolerance. The mutations that enabled adults to consume dairy food spread like wildfire among early farmers. This is a very compelling piece of evidence of the process of gene-culture coevolution that the authors mean is the force that has created our human nature. Culture (in this case agriculture) created a selective pressure for lactose tolerance which then in turn affected our culture as our diet and food production changed. And all this in just a few thousand years. Do we have any particular reason to assume that this process wouldn’t affect our culture and our behavior in other aspects?

Personality: The Rise of the Nerds

I ask this because just like the Upper Paleolithic innovations made certain skills important so did agriculture. The former most likely brought complex speech and the ability to deceive. Before that life was probably no picnic, but there wasn’t much room for Dark Triad personality traits. Language, however, must have created a huge selective pressure for such traits. And with agriculture came new traits, since traits tend to correspond to skills. The hunter-gatherers didn’t need to make plans; they roamed, and they may have memorized certain places and routes where food was plentiful or where they could find shelter. As the authors point out, instant gratification would not be a problematic trait under those circumstances. But the farmer who ate just a little of the grain needed for next year’s sowing may well have sealed his and his family’s fate that way, especially a northern farmer.

Farming changed the whole way of life. It required making plans, collecting and evaluating information, and thinking ahead – sometimes years ahead. It required intelligence, true, but also a kind of personality captured by Big Five Conscientiousness, MBTI Thinking and Judgment, or the Cerebral factor of interests isolated by psychologist Peter Rentfrow and colleagues. These all refer to being rational, deliberate and careful. While this sounds like being intelligent none of these measures correlate with actual intelligence. It’s more similar to being nerdy. This cerebral/nerdy trait is most likely an even newer aspect of human personality than the Dark Triad.

What about the Pastoralists?

This begs the question of why people in the Middle East, who the authors argue should be the most adapted to agriculture, can be so unnerdy? They mention resistance to type 2 diabetes as an example of an adaptation to agriculture (a larger intake of carbs), but people in the Middle East have the highest prevalence of type 2 diabetes in the world. There is a possible explanation for this in the form of nomadic pastoralism. This culture emerged around 3000 years ago in the Middle East and remains strong right up to the modern era. So their experience of agriculture is interrupted and mixed with this other culture and corresponding diet, richer in meat. And since agriculture has been an accelerating process, cutting off 3000 years at the end means a whole lot more than at the beginning.

But pastoralism is more than an end of agriculture. It’s a cultural innovation with its own pressures, taking people in that culture down a different evolutionary path. This path leads to inbreeding, clannishness, honor culture and a warrior-like lifestyle. This is where I feel this book is lacking a conspicuous piece of the puzzle. It focuses too much on agriculture and gives the reader the impression that differences between populations are mainly about how long they’ve been farmers. They do mention it but mainly in the discussion of how early Indo-Europeans conquered the steppe with the edge of lactose tolerance. But if human nature has been shaped varying selective pressures of agriculture then the same should hold for pastoralists. (This type of human is described in some detail by blogger HBD Chick.)

Ashkenazi Intelligence

As a final example of just how fast the wheels of evolution are spinning, the authors present the rise of Ashkenazi intelligence. This would be a significant change in less than a millennia, which may be hard to believe in. But although speculative, it’s not a matter of belief, but of evidence and plausibility.

The Ashkenazi has existed as a distinct group of Jews since medieval times, but according to the authors their intellectual prominence is as late as the 1800s. Today their average IQ is estimated at 112-115. They have won more than 25 percent of all Nobel prices but make up only 0.17 percent of the world’s population. That is pretty mind-blowing. So how did it happen?

The cause, Cochran & Harpending suggest, is a well-known historical fact that most people simply don’t think of as relating to the theory of evolution,

“When persecution became a serious problem and the security required for long-distance travel no longer existed, the Ashkenazim increasingly specialized in one occupation, finance,

left open to them because of the Christian prohibition of usury. The majority of the Ashkenazim seem to have been moneylenders by 1100, and this pattern continued for several centuries. Such occupations (trade and finance) had high IQ demands, and we know of no other population that had such a large fraction of cognitively demanding jobs for an extended period.”

So they were effectively forced into high IQ professions and as success translated to more children this constituted a very strong and unique selective pressure that increased their intelligence. This sounds plausible, but while we know of their later achievements we don’t have any way to estimate their intelligence at the beginning of this period. The fact that they were sought after in the finance sector must mean that they had some smarts right from the start. As blogger Jewamongyou points out, in his overall positive review, religion may be an overlooked selective pressure, “It was specifically religious scholarship that made a man coveted as a husband.”

I have no idea of just how sexy Talmudic analysis was back then and to what extent those who excelled at it could extract resources to afford more children than others. But if this was the case then it certainly changes things a bit. It would weaken the case for superfast evolution, but the authors would still have a case for very fast ditto. How so?

Well, Ashkenazi Jews are a genetically distinct group with a number of serious genetic diseases. The popular explanation for this is that they at some point passed a bottleneck, a point when the population was so small that single individuals would leave their genetic mark on future generations. This has happened before but in this case the gene variants behind these diseases cluster together in regard to very specific functions of the brain and nervous system, DNA repair etc. A bottleneck would be random – no clusters.

Instead these clusters suggest that selection for something having to do with the brain – something that improves fitness – has taken place. And it would be recent selection as the genetic diseases are caused by homozygosity in these genes. Because in the long run adaptive genes with harmful side effects will be replaced by less harmful ones. So like haplotypes, harmfulness is another way of dating adaptations. And these diseases like for instance Tay-Sachs are among the worst imaginable.

So be it finance skills or perhaps religious fervor (that would surely give Richard Dawkins a stroke), there is still a case for some recent selection relating to intelligence.


Like I said in the beginning of this review, I think this book is among the top science books of recent years. It replaces the highly popular nonsense idea of halted evolution with a plausible theory of accelerating evolution. It provides a theory of how human nature has been shaped and differentiated into genetically distinct groups, not just by the physical environment, but increasingly by the social environment that various cultures represent, the most important factor being agriculture (or lack thereof). I still miss the pastoralist/clannish branch but maybe that will be in the next edition.

It would be easy to dismiss it had it not been so plausible and backed up by hard evidence. So the natural reaction from science journalists, pundits etc, the majority of whom still feel Stephen Jay Gould view is valid, is to ignore this book. Economist Tyler Cowen (who also doubted Homo sapiens interbreeding with Neanderthals despite of the common sense appeal of the idea) wrote a sweeping 14-line review, snubbing it without addressing anything specific, hardly more than a hit-and-run. One professor of biochemistry by the name of Larry Moran even tried to question the veracity of the Gould quote above, presumably hoping that fact checking is now a thing of the past. (Anthropologist John Hawks set him straight on that one).

I think this silence and these inferior attempts at dismissal speak volumes by themselves. If critics really had a good argument against Cochran & Harpending then surely they would use it. Given how the academic community tends to react to theories about heritability of intelligence and personality trait, innate group differences etc, I think they would use it much like a Neanderthal would use a club to bludgeon someone from an enemy tribe to death with. But don’t take my or anyone else’s word for it. It’s a short book, an easy read, and it only costs 10 dollars. If you’re a truly intellectually curious person, chances are you’ll get a good buzz from it. I certainly did.


Personality Regions: The Friendly Midwest, the Left Coast and the Wicked (Possibly Irish) Witch of the Northeast

March 18, 2014

I find the geographic distribution of personality traits to be a very interesting topic. It can give us insights on so many things, like human evolution, culture, politics etc. As I blogged about before here, psychologist Peter Rentfrow has noted that America is split in two halves that score high and low in neuroticism. And German psychologist Martin Obschonka has identified a personality profile that is more common in the region called the Mountain States or Interior West that correlates with entrepreneurial activity. Last year, Rentfrow  dug deeper into this with an interesting study which didn’t get as much attention as it deserved, so here is a little something to correct that mistake. The study combines large samples of Big Five test data (a total sample size of almost 1.6 million) and use so-called cluster analysis to identify psychological regions within America. To get a bird’s eye view of his findings, let’s start by showing some maps of the regions in question,

cluster 1

The “friendly and conventional” (FC) region in the middle and southern part of the country is characterized as being more extraverted, agreeable and conscientious, a little more emotionally stable (low neuroticism), but also much less open to experience than the national average.

cluster 2

The “relaxed and creative” (RC) region in the western part of the country is characterized above all by being very open to experience and emotionally stable, but also introverted and slightly less agreeable than the average.

cluster 3

And finally, the third region, “temperamental and uninhibited” (TU), located in the northeastern part of the country, from Maine down to West Virginia, is characterized as very emotionally unstable and low in conscientiousness while being moderately introverted and open to experience. I wonder if that’s how they describe themselves on dating sites : )

I think most people can recognize that these differences exist to some degree. I’ve never been to America myself, but a friend of mine was there on a business trip and he noted how friendly and pleasant the Midwesterners were. But when he mentioned that he was heading to California they shook their heads and one of them said, “you won’t like it, it’s all Mickey Mouse.” But how much of this can be validated by society level measures?

The PESH – Political, Economic, Social and Health – Correlates

Rentfrow & Co used a variety of so-called PESH variables, and some general demographic variables. They then calculated correlations between them and state prototypicality, that is to say the measure of how well a state fits the personality profile of its region. And here is what they came up with,

PESH Friendly & Conventional Relaxed & Creative Temperamental & Uninhibited
Women -0.22 -0.16 0.39*
Non-Whites -0.26t 0.52* -0.10
Median Age -0.18 -0.17 0.44*
Votes Republican 0.50* -0.35* -0.42*
Mainline Protestant 0.43* -0.49* -0.24*
Wealth -0.42* 0.35* 0.28*
Human Capital -0.50* 0.47* 0.26t
Innovation -0.42* 0.45* 0.22
Social Capital 0.34* -0.37* -0.14
Social Tolerance -0.38* 0.54* 0.08
Violent Crime -0.17 0.24t 0.01
Residential Mobility 0.12 0.27t -0.38*
Well-being -0.23* 0.47* -0.06
Health Behavior -0.46* 0.56* 0.15

The correlations marked with a * are at the 5 percent level and those marked “t” is at ten percent. As you can see the PESH variables in many ways show what we would expect from the personality profile of the regions. As the maps suggest, these regions are also fairly concentric – the geographical center is also the most prototypical part of the region and then states become gradually less so the further out from the center they are located. And given that the PESH correlations are based on prototypicality we would expect these variables to follow the same pattern. But we would expect wrong…

Things Fall Apart; the Center Cannot Hold

For instance, the FC region has the strongest positive correlation to political conservatism. This region has a core consisting of six states: Iowa, Minnesota, South Dakota, Nebraska, Missouri and Wisconsin. Rentfrow measured political conservatism as the tendency to vote Republican, by using a combination of percentages of votes for George W Bush in 2004 and John McCain in 2008. Now, I’m no statistician but if this measure correlates 0.50* to how typical a state is of the FC region I would think the most typical states would be the most Republican and then gradually less so in a concentric fashion. But looking at the results (in the link above) for 2008 we find that Obama actually won three core states – Iowa, Wisconsin and Minnesota. And the rest of the core states were not nearly as big victories for McCain as they were in the more remote and less typical states in the South.

It’s also worth mentioning that voting results are most likely affected by the personal style and charisma of the candidates as well as specific issues that may be important in one election and region but not the other. Gallup measure of political conservatism (and liberalism) more directly by simply asking people. In the core states 36.2-42.9 percent identify as politically conservative, which is slightly above the national average of 36.9. And again the southern states that fit the profile less well score much higher, with an interval of 41.8-47.9 percent. So again, we find the same reversed pattern where the PESH variable is the strongest in the states that are less typical of the region.

Same thing with religiousness, which was measured with mainline Protestant affiliation, a rather narrow measure the source of which I haven’t been able to retrieve. But since Gallup also tracks Protestant affiliation it should make a fairly good substitute. Again, it turns out we have a weak center and a strong periphery: the six core states have an average of 55.5 percent Protestants while the southern states average at 75.2 percent. No overlap between the core and peripheral states.

Further, the economic wealth measure is a composite which I can’t reconstruct because they don’t explain how it’s defined, but it’s based on things like GRP, median household income per capita, poverty rates etc.  With a correlation between this wealth measure and state prototypicality of -0.42* the implication is that the FC region is poor. I didn’t find median household per capita but I looked at the similar measure per capita income for the same year (2007).  While the six core states were slightly below the national average we again find that the southern states are way lower, again with no overlap between the richest southern state and the poorest core state. Or we can look at poverty rates, here from 2008 which is around the same time Rentfrows data are from,

Poverty by State

As you can see, it’s the same thing again: the core states have fairly little poverty but the less typical southern states have plenty. Yet again, there is no overlap.

A Flyover Bias?

Whether intentional or not, I find this highly misleading. I’m not sure what makes Rentfrow do this but I have a suspicion it may be a liberal bias against the “flyover states.” This bias can be seen when comedian/pundit Bill Maher recently interviewed actor Bruce Dern and dismissed Nebraska as old and poor. As I’ve shown in a previous post, Nebraska is not at all poor – unlike California which has the highest poverty rate in the country – and its median age, according to US Census 2010, is 36.2 years, one year higher than that of California but still below the national average. Since some 95 percent of personality and social psychologists are liberal and plenty admit to a rather hostile bias against conservatives, this shouldn’t come as a big surprise.

The Real FC Region: The Friendly Midwest

But let’s not throw out the baby with the bathwater. If we restrict this region to only the most typical states, the core, then we have something that looks homogeneous and concentric in terms of both personality, geography and society level correlates. They are east Midwesterners, they are indeed friendly and conventional, but in contrast to what the study suggested, they don’t stand out in any conspicuous way. They are moderately conservative and religious, they earn slightly less money than the average but they also have slightly less poverty and crime. And that’s pretty much what you’d expect from friendly and conventional people.

The RC Region: Creative and Relaxed, But Also Violent and Poor

It’s also easy to spot a similar but positive bias for the RC region. For instance, the correlation with violent crime is only slightly elevated at 0.24 at the ten percent level. But if we look at murder rates, we again see how peripheral and less typical states, like Idaho and Utah with really low murder rates, help keeping the region looking relatively peaceful. But of the most typical core states, California, Oregon, Nevada and Arizona, only Oregon is below average.

The correlation to wealth at 0.35* looks good and in line with what you might associate with a modern and open-minded region. As I mentioned above, the measure of wealth is complex and not explained in the article so again I looked at per capita income for 2007 (the year his index is based on) from the US Census. The core states are in the range 33K-41.6K dollars with an average of 37.5K, slightly below the national average of 38.6K, (although slightly above the FC core of 36K). The peripheral states have smaller incomes. I’ve already shown the poverty map above and that doesn’t help either. Somehow Rentfrow manages to make this region look wealthy but it seems to be an artifact of his calculations and perhaps wishful thinking.

The Real RC Region: The Left Coast

Again, this is not to say that the Relaxed & Creative region doesn’t exist, but like the FC region, it would become more homogeneous and meaningful if limited to a smaller area, in this case the coastal states. This is not just a matter of bias, but also how these calculations are made. I’m no statistician but Utah, although in the periphery is clearly marked on the map above as part of this region even though it is slightly above average in extraversion, agreeableness, conscientiousness while slightly lower in openness. It seems to fit this region by virtue of low neuroticism alone. And half the country is low in neuroticism. Have a look for yourselves at the eight main states of this region, traits listed in the order extraversion, agreeableness, conscientiousness, neuroticism and openness,

Oregon          30.9, 59.1, 45.8, 39.5, 58.8

Washington   30.6, 55.8, 45.0, 36.9, 56.6

California       51.4, 49.0, 43.2, 39.1, 65.0

Arizona          50.6, 46.6, 58.4, 38.1, 54.7

Nevada          46.4, 31.8, 55.8, 44.0, 61.3

New Mexico    32.4, 45.4, 58.5, 51.6, 62.0

Idaho             40.7, 52.9, 44.5, 44.2, 44.7

Utah               55.8, 69.4, 54.5, 30.4, 47.7

As you can see, Oregon and Washington are virtually identical, while California fits fairly well, even though the state is now just above average in extraversion, possibly due to migration. This would make a region of low to average extraversion, average to high agreeableness, low conscientiousness, low neuroticism and high openness. There may of course exist other personality regions with interesting correlates too, but right now I’m going with what Rentfrow generated. If we map the modified FC and RC regions along with the original TU region on a map of social and economic conservatism and liberalism created by statistician Andrew Gelman we see how these states stick together pretty good,


The Wicked Witch of the Northeast

When I saw how well this region fits into Gelman’s map I had a suspicion that Rentfrow got it right. But let’s check some correlates anyway. The biggest correlations are those of higher  median age and a larger female population. This is fairly easy to check since this region is practically identical to what the US Census Bureau defines as the Northeast Region. The personality version of the region has a core area consisting of Pennsylvania and Delaware in the south and every state further north up to Maine. Peripheral and less typical states are Maryland, Ohio, West Virginia and the more remotely located state of Texas. According to the Census 2010, their Northeast Region has the highest median age (39.2 years) and the lowest sex ratio (94.5 men per 100 women). The average of the core states is 95.0 and for the peripheral states it is 96.1, so that looks nice and concentric. In case you wonder about the populous states of New York and Texas, I haven’t weighted anything but their averages are 93.8 and 98.4 so that would confirm the pattern even more. As for median age, it’s a similar picture with a core average of exactly 40 years while and a peripheral average of 37.9 years.

Finally, the last big correlate, political view, again I use Gallup’s record on how many identify as politically conservative rather than the presidential elections of 2004 and 2008 for the reasons I stated above. In the core states there is an average of 31.3 percent who think of themselves as politically conservative, well below the national average of 36.8, and equally important, below the average of 38.0 for the peripheral states.

Still, these correlates are pretty neutral. Violent crime is less flattering so maybe the zero correlation to this personality region is kept low by some tricky calculations as in the RC region? A quick look at the murder stats show that the core states have 3.9 murders per 100K people as compared to the periphery which has 4.7, identical to the national average. That’s the reverse of what we’d expect but it’s only one metric that varies over time so all in all, this region looks like it makes some sense. And there is no suspicion of bias.

All in All, a Brave Effort

While I’ve been whining a lot about the liberal bias in this study, I still think this is a bold step in the right direction. After all, all behavioral traits are highly heritable so research about these regions and their behavioral correlates can only be described as human biodiversity research. And we don’t see too much of that, unless it’s unintentional. It would have been nice if Rentfrow had shown how racial/ethnic groups differ since most of the samples had that information. Such differences could explain, at least to some degree, why we have these regions. When you see the high levels of neuroticism in the Northeast, it’s hard not to think of the Irish who are plenty in that region. It would also have been great if they had measured dark traits too – I mean, this is America we are talking about : )

But I’ll get back to the issue on how these regions came to be in a later post. Right now I just wanted to introduce them – and of course to show what they really look like : )

Openness to Experience – That Liberal Je Ne Sais Quoi

November 5, 2013
Forgot where he put his weed.

Looking for the anthology on existentialism, or maybe just his stash of weed.

Whatever you think of the Big Five personality model, most of its traits are easy to understand. Extraversion, agreeableness, conscientiousness are all pretty much what they sound like. Neuroticism is a little more problematic since it deals with emotional instability but only in regard to negative emotions, but it’s still easy to understand what it means – being anxious, worrisome, sometimes depressed. But then there is openness to experience. You’d think that would be equally straight-forward: being into new experiences, like travelling and experiencing other cultures, having broad interests, making new friends, maybe sexual experimentation and trying drugs as well. Not so much.

The Official Picture

Here is a list of words and phrases that psychologists feel characterizes this trait,

Intellectual, imaginative, artistic, cultured, refined, original, insightful, curious, creative, independent and divergent thinkers, appreciation of art and beauty, willingness to consider new ideas, unconventional.

And here are some test items that measure openness,

Have a rich vocabulary.

Have a vivid imagination.

Have excellent ideas.

Quick to understand things.

Use difficult words.

Spend time reflecting on things.

Am full of ideas.

Carry the conversation to a higher level.

Catch on to things quickly.

Love to think up new ways of doing things.

Love to read challenging material.

Am good at many things.

Or in reverse,

Have difficulty understanding abstract ideas.

Am not interested in abstract ideas.

Do not have a good imagination.

Try to avoid complex people.

Have difficulty imagining things.

Avoid difficult reading material.

Will not probe deeply into a subject.

Intelligence and Creativity

When looking at these items, it’s pretty easy to notice two separate factors, one of intelligence,

Intellectual, have a rich vocabulary, quick to understand things, spend time reflecting on things, catch on to things quickly. (Whoever makes these tests clearly has a thing for the word “thing”.)

And one of creativity,

Have vivid imagination, have excellent ideas, full of ideas, love to think up new ways of doing things.

This is not something I personally discovered just now. Already back in 1981 psychologists John Digman and Naomi Takemoto-Chock analyzed the openness factor and found two sub-factors, “one of which appeared to be concerned more with intelligence, the other with matters of culture.” Others have referred to these factors as “reflection and curiosity/experimentation/hypotheses testing.” (Couldn’t find a link to the article so if you have one please let me know.)

Not that there is anything wrong with combining two traits into one. The trait of psychopathy is a combination of impulsivity and lack of empathy. That’s a meaningful construct because while both factors are relatively harmful the combination produces a type of person that make up less than one percent of the population but 20 percent of all convicts. And many of the other prisoners are afraid of them. That effect makes it a useful construct.

Openness, however, is supposed to be a broad factor of personality, a basic building block that only breaks down into aspects of itself, so-called facets. Like the shades of a color. Although some facets of other Big Five factors are questionable, the overall picture is clear – they are really aspects of the same thing, not combinations of essentially different traits. The same goes for broad factors of other models, like those of Eysenck, Cloninger or the MBTI, based on Jung’s theory.  So you might say such a factor is a contradiction in terms – it’s not broad or basic, it’s narrow and specific.

The Correlates – In Search of the Je Ne Sais Quois Factor

Unless of course you think of intelligence and creativity as two aspects of some underlying factor that is for some reason called openness to experience. But what would that factor be? We all know what conscientiousness, agreeableness, neuroticism and extraversion boil down to, but what is the core of openness to experience? It’s clearly not being literally open to experience because sensation seekers and the similar novelty seekers are very open to various experiences and measures of those only correlate modestly with openness. Perhaps the behavioral correlates of openness can give us a hint. Unsurprisingly, it correlates to measures of intelligence and creativity but that’s to be expected since it measures exactly those traits in the tests. Is there some other correlates that suggests an underlying factor behind both of these?

Liberal values. A liberal attitude has consistently been linked to openness (as has conscientiousness to conservatism). There is some research to suggest that liberalism is linked to intelligence, although this study is of moderate quality. And artists, generally thought to be a liberal group, do score about half a standard deviation higher than non-artist according to a big meta-study made by psychologist Gregory Feist. So this correlate clearly supports the idea of a two-factor trait rather than an underlying factor of openness.

Entrepreneurship. Openness appears to be a part of the entrepreneurial personality (along with high extraversion and conscientiousness and low agreeableness and neuroticism). But this is almost by definition a matter of creativity and most likely to some degree intelligence, so again nothing lurking beneath these two factors.

Migration. People high on openness tend to move around more, both within and between countries. Could be something beyond intelligence and creativity. I don’t see it, but let me know if you do.

Extramarital Affairs. This has not been properly established. There is a huge global study on this that found no link between openness and infidelity. (Instead it found this to be a matter of low agreeableness and low conscientiousness.)

Trying new foods. This sounds like creativity maybe in conjunction with a liberal appreciation of other cultures.  And of course a bit of sensation seeking since as I mentioned before this trait has a modest correlation to openness.

Tattoos and piercing. I haven’t found any evidence that this relates to intelligence or even creativity. On the other hand, what underlying factor of openness would it be an indication of?

The Mystic Component

Dreams. People who score high on openness remember their dreams and often use their dreams to solve problems. This may be something that isn’t just a matter of intelligence or creativity or a combination of both. I have yet to see any research to confirm it but it’s a possibility perhaps suggesting that openness is some form of transcendent quality.

Spirituality. This somewhat vague dimension of religiousness, often defined more as a quest than a belief, has been found to correlate with openness.

Schizotypy. This trait, which is basically schizophrenia light, is also linked to openness.

This certainly looks like a candidate for an underlying factor but it’s most likely not. In a large high quality study of religion and intelligence, psychologist Gary Lewis found a correlation between spirituality and IQ of -0.05, which he generously refers to as support of the stronger inversed relation found by Kanazawa and others, but in reality it indicates that there is no relation between the two whatsoever. Other research has shown schizotypy to be linked to creativity so it would seem this mystic component belongs in that sub-factor.

Susan Sarandon - the poster girl for openness. Looks nice, a bit a mix between a Disney character and Mona Lisa.

Susan Sarandon – the poster girl for openness. Looks nice, like a mix between a Disney character and Mona Lisa.

In Any Way Useful?

But even if openness fails miserably, in my opinion, as a broad factor of personality it could still be useful. The two-factor trait of psychopathy has relevance in many situations, indeed, no one would find it irrelevant to know if the person in front of them is a psychopath or not.

Sadly, this doesn’t seem to be the case with openness. The correlates I’ve mentioned above represent a large portion of what we know about this trait. And they don’t suggest any real need for this trait at all. They can all be reduced to either intelligence or creativity or a unsynergistic combination of the two. With the possible exception of something like migration and tattoos and piercing. Compare this with just a few correlates of conscientiousness like divorce rate, overweight and health, school and work performance and leadership. It’s just very hard to understand what use psychology (or anyone) can have of the trait openness to experience.

Mirror, Mirror on the Wall

And yet, if we combine all the features and correlates into a portrait we might find a clue to have this trait has become so prominent in personality psychology. The open person is of high intelligence and presumably also creative. He (or she) is a liberal with interests that lean more towards the humanities and soft science than hard science. He is not an atheist but also not part of traditional religion – a searcher rather than a dogmatic person. To me, this sounds a bit like a well-educated hippie, a White Californian, like for instance the always interesting blogger Santi Tafarella. But more than anything else, it sounds like a psychologist.



Richard Dawkins Upsets Liberals and Muslims by Confronting Them with Reality

August 11, 2013
Just hate this guy and everything will be fine.

Just hate this guy and everything will be fine.

On Thursday this week the well-known biologist, atheist and author Richard Dawkins tweeted,

All the world’s Muslims have fewer Nobel Prizes than Trinity College, Cambridge. They did great things in the Middle Ages, though.

The reactions to this true and easily verifiable statement have been pretty negative,

The Guardian: “as rational as the rantings of an extremist Muslim cleric”

Telegraph: “Dawkins has gone from criticising the religion itself to criticising Muslims, as a vast bloc.”

Daily Mail: “Half of the ten Muslim laureates were awarded the prize in the 21st century, during which Trinity College has only had one prize winner.”

New Statesman: “…on what planet are Nobel Prizes the best metric for achievement or progress?”

The blogosphere, being more representative of the Western population, is less polite but more balanced with people defending Dawkins.

Reality Bites

So why are the critics so angry with Dawkins? No one contests that his statement is true, indeed the truth of it may well be the source of their indignation. The politically correct people, common in the mainstream media, are not willing to give up on their vision of multiculturalism – and if Islam is intellectually barren then mass immigration of Muslims to the West may not be such a good idea. So if their political ideas clash with reality – then screw reality.

And the reality is actually much worse than Dawkins tweet suggests. Of the ten Muslim Nobel Prize winners, only two are in hard science. Six are in the controversial peace category and two are in literature. Furthermore, Orhan Pamuk, winner in the literature category, claims to be a “cultural Muslim”,

So I’m a Muslim who associates historical and cultural identification with this religion. I do not believe in a personal connection to God; that’s where it gets transcendental.

Which probably few of the world’s Muslims would acknowledge as a true Muslim. And the winner in physics, Abdus Salam belonged to the Ahmadiyya sect which most Muslims don’t recognize as part of their religion. That leaves us with two clear-cut Muslims winning outside the joke category of peace. On a population of 1.6 billion. Is this just a coincidence or in fact an indication of a bigger problem?

Not So Smart…

Of course, the Nobel Prize is not the only measure of intellectual achievement or level of civilization. All around the world psychologists have people take IQ tests to measure their cognitive abilities. The smartest predominantly Muslim country is Kazakhstan with a national average IQ of 94, followed by Malaysia at 92. These scores correlate strongly with a nation’s GDP. Basically, no country below 95 is doing well, unless it has enormous amounts of oil or if it’s a tax haven. And for anyone who thinks high IQs are the result of money rather than vice versa, the stats for super-rich Muslim oil countries tell a different story – Brunei  91, Qatar 78 and United Arab Emirates 84.

But Highly Corrupt…

The above mentioned United Arab Emirates and Qatar share the highest spot (being the least corrupt) at 27th on the Corruptions Perceptions Index. But overall, corruption is high in the entire Muslim world. Malaysia and Turkey share second place at 54th. Many of the countries now attempting to achieve democracy are among the most corrupt in the world – Egypt at 118, Syria at 144, and Libya at 160 of 174 nations.

And, Less Known, Very Inbred

Inbreeding is a topic rarely discussed in mainstream media even though it correlates strongly to both intelligence and corruption. I hope that we can all agree that having sex with your relatives is a bad idea and that having children with them is even worse. So how does this relate to Islam? If we compare PEW’s map of the percentage of Muslims by country with a map of the frequency of consanguineous marriages from  we can see that they are almost identical,

PEW's map of Muslims by country.

PEW’s map of Muslims by country.

Global frequency of marriages between first cousins or closer.

Global frequency of marriages between first cousins or closer.

This may seem like a cheap shot, but inbreeding is also a correlate of intelligence, corruption and obviously congenital diseases. And it probably also contributes to a hostile tribalism or clanishness.

What to Do About It?

Some critics will blame the shortcomings of the Muslim world on the West, but intelligence is a highly inheritable trait which is very resistant to external influences. For instance, malnutrition has decreased drastically in recent decades around the world but it hasn’t had any big impact on IQ scores, and those super rich oil countries remain at a very low level. Corruption is a strong correlate of intelligence and can hardly be due to Western influence either. If it was we’d expect South America to be as corrupt as the Middle East. And Western oppression has probably not compelled Muslims to marry their cousins, uncles and nieces while leaving the oppressed of other faiths to decide for themselves.

Maybe we shouldn’t blame anyone. The problems of the Muslim world are no doubt a matter of both genes and religion, and date back a long time. Perhaps they should fix their own problems; and maybe we can help them, then again maybe we can’t. I don’t have the answers.

But I’m pretty sure that Dawkins is right that there is a big problem and that Islam is a threat to the West. If we import the people, we import their problems. Looking at the situation in my own country of Sweden this is very clear when you look at the situation in the town of Malmö, our Muslim murder capital. After several cases of assault, vandalism and harassment towards Jews making many leave the country, Ilmar Reepalu, the mayor of Malmö commented,

There haven’t been any attacks on Jewish people, and if Jews from the city want to move to Israel that is not a matter for Malmo.

Again, screw reality.

And honestly why aren’t the pundits who attack Dawkins doing the same to astrophysicist Neil deGrasse Tyson who says exactly the same thing? No, they wouldn’t attack a Black guy, especially not a smart and sympathetic one like Degrasse Tyson. That would look bad. And perception is at the heart of the attitude of the politically correct. They rather save face than save Western civilization.

Book Review: The Righteous Mind – Why Good People Are Divided by Politics and Religion (2012) by Jonathan Haidt

July 24, 2013



There is a lot to be said about this book; too much for a single review, but let me just start by saying it’s been a long while since I read something this interesting. It may not be up there with Steven Pinker’s The Blank Slate and Judith Rich Harris’ The Nurture Assumption but it’s not far off. So yes, it really is a big deal, and as another reviewer pointed out, the ideas presented in it are nothing short of a revolution in moral psychology.

The Old Guard

Back in the 1900s, the dominant idea on morality was that it was a product of logical reasoning, a school of thought, represented by psychologists like Jean Piaget and Lawrence Kohlberg. According to Haidt, this theory became dominant because it accorded well with the values of the secular liberals who, now as then, were equally dominant at the Universities. We learn about right and wrong , they claimed, through rational thought. And if we are allowed to do so without the meddling of religion, tradition or other illegitimate authorities, we become modern and rational citizens, eager to build a shiny new tomorrow.

And by predefining morals as based on concepts like justice and harm rather than authority or tradition the Kohlberg and the other rationalists – without realizing it, according to Haidt – created the results that suited the zeitgeist. Caring and demanding justice for the oppressed now seemed to be scientifically proven as the morally right thing to be doing. This way of thinking prevailed up until the 1990s when behavioural genetics and evolutionary psychology was beginning to undermine the progressive hijack of science.

Haidt’s Revolution

As a student in the 1980s, Haidt had doubts regarding the contemporary view on morality in psychology. He says he remembers quarrelling with his sister as a kid and how the feeling of being right was instant and emotional.  The logical reasoning came afterwards, when he tried to explain why he was right, but he kept his skepticism to himself. When studying cultural psychology taught by anthropologists, he found that among some people, you could kill a complete stranger for no good reason and the deed would increase your status. And in some cultures it was immoral to eat certain foods.

It seemed that moral psychologists only had one piece of the puzzle. This revelation and following research, including a visit to India, eventually resulted in Haidt presenting his six moral foundations – Care/harm, Fairness/cheating, Liberty/oppression, Loyalty/betrayal, Authority/subversion and Sanctity/degradation.  According to his theory, all these foundations are to some extent used by most people in forming moral judgments, although they vary by things like culture and ideology and individually as well.

Two Tribes: the WEIRD and the Old-Fashioned

In researching the foundations, he found that two patterns emerged. Westerners, liberals, adults, educated, upper class people had a tendency to rely mainly on Care/harm and to a lesser degree on Fairness/cheating and Liberty/oppression.  Non-westerners, conservatives, children, uneducated, lower class people on the other hand relied more evenly on all foundations. The first category of people is similar to what anthropologists refer to as WEIRD – Western, Educated, Rich, Democratic. He found this pattern by confronting people  with so-called harmless taboo stories like these,

A family’s dog was killed by a car in front of their house. They had heard that dog meat was delicious, so they cut up the dog’s body and cooked it and ate it for dinner. Nobody saw them do this.

A man goes to the supermarket once a week and buys a chicken. But before cooking the chicken, he has sexual intercourse with it. Then he cooks it and eats it.

WEIRD people, relying heavily on Care/harm, were the least likely to say that these behaviors were wrong. They were often disturbed by the actions described, but argued that as long as no one was harmed it was their choice. Although later Haidt hints at the fact that even WEIRD people probably make moral judgments on other foundations even though they may not be keen to admit it. As an example he mentions the piece of art known as Piss Christ, a crucifix submerged in urine, and wonders if a “Piss Martin Luther King” would be equally acceptable to the WEIRD. For some reason they are unwilling to admit that they rely on other foundations. Holding something sacred, relying on the Sanctity foundation, may feel awkward to a modern and rational person.

Visceral, Not Cerebral

And like his quarrels with his sister, he found that moral judgments in general are immediate and emotional, rather than cerebral and deliberate. To prove this he made some clever studies in which he gave participants tasks involving making moral judgments. He then introduced time limits and distractions – factors that lower the quality on cognitive tasks. The quality remained intact – people tend to know what’s right and wrong instantly. Haidt concluded that moral judgments are more like intuitions or gut feelings than rational thought, which only comes after the fact when people justify their judgments.

So Where Do Morals Come From?

But if we can’t reason our way to what’s right and wrong, then how do we do it? Part of it is in our DNA – moral foundations correlate with personality traits (you might actually think of them as personality traits) that are known to have a high heritability. The other part is social; people usually conform to the morals in their culture, and they usually change their mind on moral issues as a result of social influence rather than by private contemplation. This is for instance seen in the fact known to advertisers – repeated exposure makes for a positive judgment. And friendliness tends to be a better way of persuading people than reasoning. It all point to morals as something we acquire to fit in and get along. This is also found in politics where people often vote with their groups and against their self-interest.

Haidt claims that morals originated with shared intentionality. We developed this ability to hold a common idea and act on it. One man holds down the branch and the others pick the fruit. Chimps can’t do things like that. This common understanding was the seed, it meant that there was a right way of doing things and that letting go of the branch before the others had picked any fruit was a crappy thing to do. So as our ability for shared intentionality evolved so did our ability to cooperate. Which made the righteous person a team player.

Our Hivish/Clannish Nature

How far did the moral/cooperation trend take us? Haidt points out that colonial insects have outcompeted nearly all solitaries and that humans by excellence in cooperation have achieved a similar dominance. He speculates that group selection can have created individuals who can set their self-interest aside, at least under certain circumstance, and like colonial insects view the hive as the main priority. War would be one such circumstance, but Haidt also mentions rituals, like dances, marching and such ceremonies as a way to connect to our hivish nature.

Exactly how hivish we are remains to be seen. Colonial insects are clones so their evolutionary self-interest coincides with their group. Clearly Haidt could have benefitted from Human Biodiversity, especially the findings of hbd chick* that show how the most closely related also are the most hivish/clannish. Since humanity has lived in small isolated groups inbreeding must have created a selection for kin altruism. Since this way of living ended fairly recently, we could still have this hivish /clannish/tribal nature, even without any type of group selection.

Religion – It’s Not What You Believe, It’s Who You Believe It With

WEIRD people have a tendency to be skeptical of religion. They look at the various beliefs in supernatural agents and conclude that it’s an unhealthy thing, similar to a disease of the brain. The general idea behind this view is that if you believe in crazy things, you will eventually do crazy things and cause harm to others. But according to Haidt, religion is not about the beliefs per se, but about creating group cohesion with the foundation of Sanctity. And it can do so effectively even between people who are unrelated.

As an example, he mentions the research on communes in America done by anthropologist Robert Sosis. Communes are intentional communities built either on secular or religious ideas. Sosis looked 200 communes in America and found that after 20 years that only 6 percent of secular communes where still alive while 39 percent of the religious communes were still active. He also found that an important key to survival was sacrifice – the more people gave up for the commune the longer it lived. But this only held for religious communes. It seems, Haidt argues, that Sanctity, is needed for a sacrifice to make sense. Only if you hold something sacred will you truly make a sacrifice, otherwise it’s just a transaction. And if you hold something sacred and share it with a group of like-minded people you are more likely to stick together than if you are a secular who is always wondering if the commune is a good deal for you or not.

In line with these findings, Haidt mentions other research in economics that point to the cohesive power of religion. One example from German researchers is in the form of a game in which a so-called truster is given an amount of money in each round that he may share in part or fully with another participant, called the trustee. Any money transferred is then tripled by the experimenter and the trustee can then choose to return any or all of the money back to the truster. It turns out that when the truster is informed (truthfully) that the trustee is religious, he will transfer more of his money to him than if he is nonreligious. And, equally important, the religious trustee will in fact give back more money than a nonreligious trustee would.

This game is played out in real life too, for instance among Orthodox Jewish diamond merchants, a trade in which trust can lower the transaction costs. And it probably happens all over the world as people of the same faith do business on a hand shake rather than with lots of costly paper work.

As seen in this experiment religious cohesion even reaches out to outgroups. Haidt quotes political scientist Robert Putnam whose findings suggest that religious people make good citizens,

By many different measures religiously observant Americans are better neighbors and better citizens than secular Americans—they are more generous with their time and money, especially in helping the needy, and they are more active in community life.

Putnam’s findings indicate that while religious people are more generous to their own, they are as generous as nonreligious towards outgroups. An atheist may argue that the religious vote for lower taxes and that evens the score, but time spent in community life is not something you can get back that way.

The Culture War

 The liberal/WEIRD/atheist dismissal of religion is according to Haidt a part of the ongoing culture war between people using different moral foundations. I think he fails to explain why this war has escalated in recent years, especially in America, but there is no doubt that this trend is real and not just a media dramatization. In 1976, 27 percent of all Americans lived in landslide counties which Democrats or Republicans won by 20 percent or more – today 48 percent live in landslide counties,

Our counties and towns are becoming increasingly segregated into “lifestyle enclaves,” in which ways of voting, eating, working, and worshipping are increasingly aligned. If you find yourself in a Whole Foods store, there’s an 89 percent chance that the county surrounding you voted for Barack Obama. If you want to find Republicans, go to a county that contains a Cracker Barrel restaurant (62 percent of these counties went for McCain).

Haidt goes on to discuss how the two tribes, often simply referred to as liberals and conservatives, simply don’t speak the same language, but that they both need to understand the seriousness of the situation. They need to understand the morality of their opponents in order to to have a meaningful discussion. And they can probably learn something from each other.

He also points out that there is a trade-off between these cultures. A small isolated and homogeneous society (like Nebraska) is probably not going to be as exciting as a diverse and urban place like California. This is probably true although it doesn’t explain the growing animosity between states like these. If differences in moral foundations are the cause of the conflict it should have been as fierce 30 years ago as it is today.

At any rate, Haidt’s theory offers an interesting new perspective on human nature. Hopefully, the moral foundation can become a language or a tool with which these two tribes can learn to “disagree more constructively”. Here are some points that I think any liberal or conservative should consider after having read this book,


You need to understand that the institutions you hold dear need reform in order to maintain their inherent values. A deeply religious gay couple will honor the institution of marriage better than a drunk straight couple who got married in Vegas for fun. And when you say, “I love you, but you’re going to hell” only the last part of the sentence rings true. You need to understand that without regulation, large international corporations will suck your country dry and then casually move on – strong government and patriotism are not mutually exclusive. Also, since you watch a TV show like Modern Family, you clearly like some of what liberal “Hollyweird” has to offer.


You need to understand that religion is a force of cohesion in a country that is already very splintered in many ways. You need to understand that while Piss Christ should be protected by free speech, it is not good citizenship to offend people just to get a little attention. You need to understand that diversity is the opposite of cohesion – it comes with a price. Maybe you think it’s worth it, fair enough, but don’t pretend like it’s for free. And don’t try to squeeze tax money from conservatives to “spread the wealth”. They will only get more reluctant to pay taxes. Remember that conservatives are generous; if helping out is your first priority, you will find a way to work with them.

So be nice. Otherwise, you’ll end up like Michell Malkin. Notice the way she says “shush” to her opponent and gets wild-eyed four minutes in. Although she is good looking, it’s not a pretty sight,

The Death of Enlightenment – or How Nebraska Beats California

July 14, 2013
Children of the Corn. Now that's a tightly knit community.

Children of the Corn. Now that’s a tightly knit community.

So I’ve had this ongoing discussion with the eloquent liberal blogger Santi about the state of California. We both agree that this state embodies the ideas and the spirit of Enlightenment, being liberal, tolerant, open-minded, diverse, metropolitan and so on. All good qualities that will translate to a happy and prosperous society, he claims.

To me, however, being more of a social conservative (but still open to new ideas) these qualities are more problematic. Naturally I admire the original men of Enlightenment for trying to bring some rationality and justice into the Western societies of the 1700s, but today I think this movement or trend has degenerated into destructive and irrational project. It’s all good to have a little diversity and mutual respect for each other’s differences, but at the end of the day societies are based on what we have in common – not on what sets us apart. So there has to be a limit to our tolerance. Experience tells us that the fabric of society, the things that bind people together, is blood, history, religion, traditions and the values that come out of this mix. Friends of Enlightenment dismiss this idea and claim that all we need is to agree on some house rules, and then everyone can do their own thing while respecting each other. And so the discussion goes.

But instead of discussing, I thought it would be interesting to do a match-up between Team Enlightenment, in the form of California, with Team Tradition, in the form of a state that in as many ways as possible is the opposite of California. Using the description above as criteria, I settled for Nebraska. It’s a solidly red state with more people identifying as conservative than in most states. It has very little diversity being 86 percent White (82 percent non-Hispanic White). It’s one of the most religious states and Christianity is practically the only religion. It is rural and has no metropolitan areas. Nebraska also differ sharply from California in terms of personality, judging by data compiled by psychologist Peter Rentfrow – Californians are more introverted and open to experience while Nebraskans are more extraverted, agreeable and conscientious. (The two states score about equal on Neuroticism.) So are these hicks any match for California? Let’s start by looking at some basic economic factors and then on to general well-being, crime and corruption etc. To get some general perspective I’ve also added the national average on these metrics.


First off, here is the per capita income in thousands of dollar for the time period 1990-2011 (sorry about the x-axis; my chart skills are limited), data taken from the Bureau of Business and Economic Research at the University of New Mexico,

per capita income

As we can see, California is staying on top for the entire period, but since incomes have roughly doubled during this time the relative differences are actually shrinking. To get a better idea of what is going on, I made a chart showing per capita income of Nebraska and the nation as percentages of Californian income for the same time period,

per capita percentages

Here we can see more clearly how national per capita income has been gaining on the Californian ditto, and even more so for Nebraska which has gone from 84 percent to 97 percent. That’s a very small advantage left for California and one that’s clearly diminishing in the long run. With that in mind, look at the next chart showing economic inequality,

Gini coefficient

The chart is showing the Gini coefficient, a measure of economic inequality (the higher the more unequal), data taken from Wikipedia/US Census Bureau 2010. This is probably counter-intuitive to many people – the Republican Nebraska seems to be spreading the wealth way more than progressive California. I’m not exactly sure why this is, but more stats will confirm this picture. Such as for instance poverty rates,


Here is the poverty rate for 2011 as a percentage of the population according to US Census Bureau. Almost one in four Californians are poor. That’s the highest rate of all states and more than twice that of Nebraska. Again we see that Nebraska is spreading the wealth somehow whereas California is not. We find a very similar picture if we look at unemployment, here the percentage rates for May 2013 according the Bureau of Labor Statistics,


And if you think that is just a fluctuation and that California with all its creative people are busy generating jobs for the future, here is Gallup’s Job Creation Index for 2012,

job creation index

Evidently, Nebraska is much better at creating new jobs which explains the low unemployment, and probably also why the state has almost caught up with the Californian per capita income and looks to surpass it in the near future.

Health and Well-Being

Still, money isn’t everything. Perhaps the diversity and sunny weather makes for a happier and healthier life? Here is Gallup’s Well-Being Index for 2012,


Overall Nebraska scores higher although in fairness, looking at some of the sub-factors, Californians eat more fruit and vegetables, exercise more and have less obesity. But Nebraska still wins this round with more people with health insurance, more people who feel their neighbourhood is getting better and fewer people having diabetes – somehow those healthy Californians are still getting more diabetes – a matter of stress or genetic differences?

Crime and Corruption

Moving on to crime. I’ve chosen murder because it’s perhaps the most robust measure in this field (although using total crime will give a similar pattern). Here is the murder rate per 100K inhabitants in 2009 according to US Census Bureau,

murder rate

As you can see, the Californian murder rate is only slightly higher than the national average, but it is more than twice that of Nebraska.

As far as corruption goes the states are fairly similar: California is ranked 81 and Nebraska 80 on the State Integrity Investigation’s ranking for 2012, a negligible difference, but this index shows some weird fluctuations that are not present in the international Corruptions Perceptions Index. For this reason I’ve used actual convictions instead, compiled by the Justice Department and visualized in an interactive map at Here are the convictions between 2000-2010 per 10K public employees by state,


California is clearly better than the national average but is again beaten by Nebraska, having almost twice as many convictions.


Like State Integrity Investigation’s ranking, there are some subjective measures of the quality of education, so I’ve focused on actual attainments in the form of NAEP scores and statistics on degrees from the US Census Bureau. Here is the current situation in terms of achieved degrees,


California has a little edge when it comes to higher education but not much. The most conspicuous difference is how Nebraska has distinctly less people without a high school degree, something that fits well with the low poverty rate.

And for a look at what the future may hold, here are the NAEP scores for 8th graders in 2011,


They look similar but California is below the national average in all categories whereas Nebraska is equal to the national average on math and slightly above on reading and science. And this of course means that Nebraska wins over California in all categories. The reason is most found in the changing demographics; the Californian population is now largely Mexican and Mexico has a national average IQ of 85 or thereabout.

The Verdict

I may be engaging in confirmation bias here, seeing what I want to see, but judging by these metrics, had this been a boxing match then California would have been lying on the floor by now. California has historically attracted smart people and Silicon Valley is still the high-tech hub of the nation. But per capita income is the only metric in which California clearly beats Nebraska. And that is likely to change as Nebraska now has 97 percent of the Californian income and has smarter school children.

So why is Team Tradition winning over Team Enlightenment? I believe it’s because Team Tradition is built on common denominators – ethnic, religious and historical. That creates trust, loyalty and friendship – and that translates to less crime, and probably less poverty too as people know each other and become more inclined to help one another. It also creates more well-being (less stress and insecurity) and more efficient ways of doing business. It probably leads to more corruption sometimes, when people get a bit too friendly, but judging by this example that isn’t always the outcome.

Meanwhile, the only thing members of Team Enlightenment have in common is the idea that they don’t need to have anything in common other than a set of rules. This creates a team of strangers who have no good reason to be loyal, friendly or trusting of each other. It’s a team who will settle all their conflicts in court – or with a gun – and who will welcome any new members regardless of their qualifications or abilities. How can that team ever win?

Human Biodiversity – Things You Are Not Supposed to Know About

June 5, 2013

As someone interested in personality, I find the field known as Human Biodiversity (HBD) to be fascinating. For those who are unfamiliar with it, HBD is a field in which controversial issues regarding human nature are explored, debated, and above all, brought out into the open. HBD is about things ordinary scientists and journalist would prefer you didn’t know about. Plausible but suppressed facts and theories on things like how inbreeding has turned people in the Muslim world more “tribal” than others, resulting in corruption and violence and low national IQs. Or how homosexuality actually has a very low heritability and may be caused by a pathogen. Or how low intelligence may be a greater health problem than overweight, how ethnic groups may differ in behavior for genetic reasons and how this affects society. And so on.

Often discounted as amateurs, racists, sexists etc, HBDers are a mixed bunch of people who pursue these issues with little or no funds at their disposal. They are rarely prominent experts in their fields – because that would no doubt get them fired – but they have plenty of education and intelligence, and I think any honest person who listens to what they have to say will have to agree that they offer more than just shock value. Human nature includes our dark and problematic sides too. A true scientist delves into that as well, because he holds the truth above all other considerations. In that sense HBD is more science than a lot of what passes as science in Academia.

There is no official introduction to HBD as yet, but as a next best thing you can read Jayman’s 100th post  published today, which offers a well-written overview of the field.

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