Archives for posts with tag: hbd fallout

a linkfest! (^_^) ’cause i hate linkfasts, too. (*^_^*)

Whole genome sequence analyses of Western Central African Pygmy hunter-gatherers reveal a complex demographic history and identify candidate genes under positive natural selection“African Pygmies practicing a mobile hunter-gatherer lifestyle are phenotypically and genetically diverged from other anatomically modern humans, and they likely experienced strong selective pressures due to their unique lifestyle in the Central African rainforest…. Our two best-fit models both suggest ancient divergence between the ancestors of the farmers and Pygmies, 90,000 or 150,000 years ago. We also find that bi-directional asymmetric gene-flow is statistically better supported than a single pulse of unidirectional gene flow from farmers to Pygmies, as previously suggested…. We found that genes and gene sets involved in muscle development, bone synthesis, immunity, reproduction, cell signaling and development, and energy metabolism are likely to be targets of positive natural selection in Western African Pygmies or their recent ancestors.”

Directional dominance on stature and cognition in diverse human populations“[I]ncreased homozygosity was associated with decreased trait value, equivalent to the offspring of first cousins being 1.2 cm shorter and having 10 months’ less education. Similar effect sizes were found across four continental groups and populations with different degrees of genome-wide homozygosity, providing evidence that homozygosity, rather than confounding, directly contributes to phenotypic variance. Contrary to earlier reports in substantially smaller samples5, 6, no evidence was seen of an influence of genome-wide homozygosity on blood pressure and low density lipoprotein cholesterol, or ten other cardio-metabolic traits. Since directional dominance is predicted for traits under directional evolutionary selection7, this study provides evidence that increased stature and cognitive function have been positively selected in human evolution, whereas many important risk factors for late-onset complex diseases may not have been.” – see also Not tonight, cousin from dr. james thompson. and see also Inbreeding from greg cochran. and see also Directional dominance on stature and cognition from steve hsu.

Genes Unite Executive Functions in Childhood [pdf] – h/t brian boutwell! who tweeted: “Shared genes explain all of the covariance in exec functioning items. No parenting effects to be found.”

200 Blog Posts – Everything You Need to Know (To Start) and The Rise of Universalism and Demography is Destiny, American Nations Edition and National Prosperity – jayman’s been on a roll lately! (^_^) each of these warrants your close attention!

Heritability and the evolution of cognitive traits

CNVs in neuropsychiatric disorders“Over the last few years at least 11 copy number variations (CNVs) have been shown convincingly to increase risk to developing schizophrenia: deletions at 1q21.1, NRXN1, 3q29, 15q11.2, 15q13.3 and 22q11.2, and duplications at 1q21.1, 7q11.23, 15q11.2-q13.1, 16p13.1 and proximal 16p11.2. They are very rare, found cumulatively in 2.4% of patients with schizophrenia and in only 0.5% of controls. They all increase risk for other neurodevelopmental disorders, such as developmental delay and autism spectrum disorders, where they are found at higher rates (3.3%). Their involvement in bipolar affective disorder is much less prominent. All of them affect multiple genes (apart from NRXN1) and cause substantial increases in risk to develop schizophrenia (odds ratios of 2 to over 50). Their penetrance for any neurodevelopmental disorder is high, from ∼10% to nearly 100%. Carriers of these CNVs display cognitive deficits, even when free of neuropsychiatric disorders.”

Improving Phenotypic Prediction by Combining Genetic and Epigenetic Associations [pdf] – h/t dr. xaverius!

County level homicide rates by race/ethnicity of victim and On the effects of wealth on the B-W gaps, a response to questions posed by a commenter @random critical analysis.

the much discussed post The IQ Gap Is No Longer a Black and White Issue – from chanda chisala. see also Chanda Chisala: An African Hereditarian?“If evolution applies to all of us, that includes Africans. It is perfectly possible that some African sub-groups are brighter than others. Any geographic group which takes care to encourage bright persons to marry one another could see positive effects after 20-30 generations of consistently strong selection, if those brighter parents have more surviving offspring, which is likely.” – from dr. james thompson. and see also The Jews of West Africa? from peter frost. and see also my post: there’s more to human biodiversity than just racial differences.

The Water-Crossers – from greg cochran.

Ancestry Matters: Patrilineage Growth and Extinction – h/t ben southwood! who tweeted: “Higher status Chinese patrilineages in the 18th and 19th centuries had more ancestors for hundreds of years after.”

The puzzle of European hair, eye, and skin color – from peter frost.

The people who need very little sleep

How evolutionary psychology may explain the difference between male and female serial killers“[R]esearch has shown that male serial killers tend to stalk and kill strangers. But FSKs tend to kill people they know. It seems, then, that MSKs are hunters and FSKs are gatherers.”

Is the Romantic–Sexual Kiss a Near Human Universal – apparently not! – “The romantic–sexual kiss was present in a minority of cultures sampled (46%). Moreover, there is a strong correlation between the frequency of the romantic–sexual kiss and a society’s relative social complexity: the more socially complex the culture, the higher frequency of romantic–sexual kissing.”

Men are both dumber and smarter than women – just an ok article, but interesting to see this out there *at all*.

Historical Artifacts of the Blank Slate – from helian.

On a Fast Track – Can rapid genome sequencing at birth help save lives?

Genomics Industry Generating Huge Amounts Of Data Due To DNA Sequencing – yay!

Ageing rates vary widely, says study“A study of people born within a year of each other has uncovered a huge gulf in the speed at which their bodies age…. [S]ome people had almost stopped ageing during the period of the study, while others were gaining nearly three years of biological age for every twelve months that passed.” – original research article: Quantification of biological aging in young adults.

Reacting to Spree Killings, Progressively – @thosewhocansee.

for you brits: Is that stranger opposite you a distant cousin?

bonus: Pluto’s discoverer’s ashes will be the first human remains to leave the solar system — glued to the side of a space probe – *sniff*

bonus bonus: r.i.p. conrad – *sniff*

bonus bonus bonus: tweet of the week! (~_^) >>

(note: comments do not require an email. r.i.p. conrad. *sniff*)

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in chapter two of A Troublesome Inheritance“Perversions of Science” — nicholas wade tracks the histories of several lines of thought about human races which have existed over the last few centuries both within as well as outside of various scientific disciplines. he begins with the earliest biologists such as linnaeus, blumenbach, morton, and darwin; continues on through to spencer and his social darwinism and galton and his ideas on eugenics; describes the application of eugenic policies in the u.s. and europe; and eventually finishes up with the holocaust perpetrated by the nazis.

wade “goes there” since much of the fear expressed by people about human biodiversity and its study seems to be connected to the concern that such knowledge will inevitably lead to (what i would agree are) repugnant practices like the forced sterilization of individuals deemed unfit in some way or another, or officially sanctioned discriminatory practices against the members of one or more groups in society, or even genocide. many people seem to think that if we unleash “the horror that is hbd”, some groups will be told to get to the back of the bus or the ovens will be fired up or even worse.

as is often the case, however, i think that the majority is drawing what i call upside-down-and-backwards conclusions here. human groups haven’t committed injustices or atrocities toward each other thanks to understanding, or even misunderstanding, the biological differences between us all — humans are atrocious to one another because of their (our) biology. sadly, it’s in our nature(s).

the nazis, with their particular understanding of human races, did not invent genocide (although they may have come close to perfecting some truly diabolical techniques there). a simple glance at history and prehistory tells us that human populations have been trying to eliminate “the other” since time immemorial despite not having the slightest info about human biodiversity or biology or even science itself. just a couple of examples: genocidal practices were present in the americas long before europeans ever set foot there, and the mongols (as in ghengis khan and co.) were no strangers to genocide either (see “The Origins of Genocide” chapter here — you might also want to flip through the two volume Dictionary of Genocide if you have the stomach for it).

humans don’t really fight and kill neighboring populations or discriminate against subgroups within their nations — not to mention enslave one another — for any of the goofy ideological, religious, or “moral” excuses that they give. those are mostly just after the fact rationalizations that they’ve come up with (no, really — the human brain is not to be trusted!). like other creatures, humans very often try to eliminate or dominate other groups because they are in competition with them for resources [pdf] — or, at least, feel that they are anyway, whatever the reality on the ground may be. this is a behavioral pattern that we share with many other organisms, including some of our closest relatives, the chimpanzees. chimp groups will “go to war” with neighboring groups — very purposefully ambushing and killing individuals from other bands — in order to gain control over new territory, which means access to additional resources and, therefore, better chances of reproducing (which is, of course, what life is all about). we know very well that our ancestors did the same, and if those that did succeeded in reproducing the most, this violently competitive nature would’ve been selected for in humans. and as most of human history has been one of extreme violence with one group pitted against another, i’d say that this is probably exactly what happened.

i think that we need to work toward a better understanding of the biological roots of human drives and behaviors, both those that are universal to our species and any that might be more prevalant in some groups rather than others (that’s the hbd part), including the negative and violent types described above, in order that we may better be able to put an end to war and killing and genocide, etc. i know. i sound like a miss america contestant now — but i am serious!

people have a tendency to favor their own. we know that. monkeys and beetles and — h*ll! — even plants tend to favor their own. plants! this is how fundamental the us-and-them divide is. if you put a bunch of different sorts of people together, society ceases to function well. robert putnam found this in his extensive research [pdf] — and diverse communities have been shown not to work in twenty million different permutations [pdf]. this is really the best case scenario, though, when it comes to trying to get everybody to just get along: that communities are not so cohesive and that there’s a lack of unity amongst the neighbors. the worst case scenarios are agressive and violent and murderous societies. (these, perhaps, may be avoided by making sure that nations are as ethnically homogeneous as possible. perhaps.) understanding human biology, including human biodiversity, can help us hopefully to prevent both.

for those of you out there who don’t like the idea of biological or genetic explanations for human behaviors — who find them distasteful or potentially dangerous — think instead of research into human biodiversity as a way of ruling out such explanations. if science demonstrates that there are little or no biological reasons for our behaviors and/or little or no reality to human biodiversity, i will be the first to say so — i promise! but as ashutosh jogalekar said in his review of wade’s book: “Science is about ideas, not answers…. A scientific topic cannot be declared off limits or whitewashed because its findings can be socially or politically controversial…” and it definitely should not be off limits when the findings might have the potential to help humanity.

i don’t mean minimize the dangers here or say that they don’t exist. as far as i am concerned, the human species has a despicable record when it comes to how its members treat one another (and other species, for that matter), nor do i see that that much has changed over time (although some groups do seem to have been pacified quite a bit at least when it comes to day-to-day within-group interactions). in future some individuals or groups might use the knowledge of human biodiversity as a rationalization when trying to eliminate or discriminate or otherwise repress other individuals or groups. but as i described above, it won’t have happened because of that knowledge. if they succeed, though, that might be because too many people today ignored biology and human biodiversity.

previously: hbd fallout
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p.s. – still updating my A Troublesome Inheritance linkfest. don’t miss the latest links there!

(note: comments do not require an email.)

here’s a very thoughtful comment from jayman from the other day that you may or may not have seen (thanks, jayman!) [highlights added by me]:

“One might imagine that Europeans and Americans might realize the danger of immigration, especially from unstable parts of the world after events like these. But they, by in large, won’t. Certain forces will see to that. Why? Here’s something to consider: what would having a conversation about this topic entail? Even to make a justified argument against immigration from certain violent corners of the world mean acknowledging group differences. And if some groups can be more violent, less intelligent, less altruistic than others on average, etc, etc… The whole topic will come out. We’d like to think that this would happen in an organized manner, spearheaded by more cool-headed rational folks, but look at the record of how public commenters handle easily bungled truths.

“Back when groups differences weren’t so taboo in Western society, and one could talk about them openly, society was *also* more racist (this was pre-Civil Rights here in America). It is possible that in order for society to be aware of the reality of HBD, it must be actually be *racist*.

“Think of all the simmering resentment in Whites that are the victims of these crimes (as a Black man, I wouldn’t talk to this soldier’s family about now). And on top of that, imagine all the Whites that are not necessarily so politically correct about race. How would they react? (Here’s an example: Far-right extremists in eastern Germany quietly building a town for neo-Nazis.) And to be sure, folks like those here who simply view HBD as just another set of facts of nature don’t seem to be the majority of the people who do believe this stuff (judging from posters and commenters on the matter in the blogosphere). Sane, moderate thinkers seem to avoid this stuff like the plague. (Of course, this could just be the disaffected voices speaking loudest, but that is the appearance anyway.)

It could be that open knowledge of HBD will lead to racial violence – two-sided racial violence. (Indeed, oddly that might be predicted by Peter Turchin’s cliodynamics). It was remarked to me that certain elites might be well aware (or aware enough) of group biological differences but keep a lid on it because they fear what the result of open knowledge would be.

“Whether or not that’s a wise strategy, or whether or not you feel the truth being out there is more important – as I do – that is the probable mentality behind such things. I suspect that that is why the elite voices are quick to put the kibosh on any discussion of group realities when events like these occur, as they are sure to do. And perhaps it is with ‘justification’.

“Tribalism – even for Westerners – is big. Can you have a multiracial society in one that is honest about group differences? Europe kinda has a choice on that, but we here in America don’t. Will people *really* run with the understanding that differences *on average* don’t apply to every last individual, or will group solidarity rule the day? How will intelligent and completely inoffensive Blacks, for example, be treated by Whites then? The example of Chechens challenges the notion of treating people as individuals, because arguably they are so tribal and violent on average that even a modest number of them can cause problems (there are only 200 in America). But if they pose a problem in that way, what about other groups?

In the end, it might not matter because the pressure of immigration and problems like these might bring the issue to forefront anyway. But what if there is no way of avoiding that? What if releasing knowledge of HBD will just hasten this reckoning?

“These are important questions to consider. I can’t say I have answers for them.”

i agree — these are important questions. and i don’t have any answers either.

i am pretty sure about two things though:

1) hbd knowledge is coming down the pipeline … fast! … whether anyone likes it or not, and we’d better get prepared for it — maybe that responsibility should fall especially on the shoulders of those of us who, for whatever reasons, happen to be aware of hbd before most of the crowd; and…

2) humans s*ck.

we really do. just read a little history!

and, so, yes — it might very well get ugly and more tribal once all this hbd knowledge gets out there, but given that i’m pretty sure that’s inevitable, we’d better brace ourselves as best we can.

most ordinary mortals can’t handle the truth, but i’m actually a little (a very little) optimistic that a lot of people actually can grasp a basic understanding of “average,” and that they already apply that understanding in their daily lives wrt other people(s). i said it before, there is a sort-of “folk statistics” out there — most people “get” why yao ming is so interesting (’cause he’s an exception that proves the rule) — they even find the fact that a chinese guy is so tall kinda funny. and that’s an indication that they understand he doesn’t fit into the usual pattern that most chinese people on average are fairly short. it’s the contradiction that makes them giggle (no one laughs ’cause michael jordan is tall).

i think most people even manage this when they’re racist or bigoted against some group. i grew up amongst working class whites, and let me tell you something you’d never have guessed — PLENTY of racism/bigotry there! and not just about blacks or hispanics — italians don’t like the irish who don’t like the poles who don’t like the germans, etc., etc. BUT, there’s always “joe” down at work who’s ok. he’s not violent or lazy or corrupt or a drunk or stupid or dour. joe’s alright!

THIS is what should be drilled into kids in school — work with (what i think is) their natural aptitude for “folk statistics,” and get them to understand that, while there are averages when it comes to groups, they have to take each individual as they come. it should be possible to teach this (the truth! — which most people instinctively get) — i mean, they’ve managed to teach an untruth (that everyone is just the same) for the past … how many decades?

they also need to teach evolution more in school — a LOT more. evolution by natural selection. ’cause then everyone would understand that, yeah, while the chechens on average might be, comparatively speaking, a bit crazy violent, that’s just ’cause of their evolutionary history which they can’t be blamed for.

as for the rest? dunno. one thing’s for sure — continued mass immigration of unlike groups to the u.s. and europe is NOT going to make it all work out better in the future! =/

(note: comments do not require an email. keep calm and…)