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December 24, 2017 / JayMan

Merry Christmas + Goal

To everyone out there!

And I want to say thank you to all my contributors. And a big thank you to Emil Kirkegaard, who’s generous contribution was able to put me over the top and allow me to purchase the laptop I was after. Indeed, I’m typing this post on the new laptop!

As a treat, I will soon have a new post for everyone. Stay tuned, and enjoy your Christmas and New Year!

December 7, 2017 / JayMan

Fund Me: Bring Back JayMan!

It’s clear that I haven’t been able to post much for awhile. And I’ll be honest, that’s because a lot of my time and attention has been diverted to taking care to my two little ones. I haven’t had much opportunity to write my posts or do much research for them. Left to their own devices, I don’t see this situation changing any time soon.

However, there is one thing that might changes things. If I had a laptop, I could have more flexibility to write and research all while being to able to attend to JayMan Jr. and Little Miss Jay. For that, I need your help. 

Here’s a counter, that will be updated daily, of my donations on this funding drive to date:


Here’s one of the laptops I’m looking at, at Amazon:

This laptop is currently running for ~$905. As to why I need such a powerful laptop? Well, My other operation, as you may have noticed, is as a photographer. A fast laptop, in addition to any task and general computing all around faster and easier, it will also make high level photo editing possible, which is at present confined to my desktop.  $905. That’s my goal. Chip in what you can. And if you know someone with really deep pockets that would like to do what they can to help out the (much beleaguered) topic of HBD, please invite them to contribute as well!

You can make a contribution via Paypal here:

I have another treat for my readers. I recently sent away to 23andMe, taking advantage of their recent sale. I eagerly await my results, and when they come back, I will post them here.


So let’s review some of my greatest hits so you can see why you should support the JayMan. There’s my introduction to those new to the topic of Human Bio Diversity (HBD), my thorough (but soft) introduction to the matter that I’ve written:

JayMan’s Race, Inheritance, and IQ F.A.Q. (F.R.B.)

This will get you started.

Of course, there was my interview by Robert Stark (of The Stark Truth). That interview is up as a podcast here:

Robert Stark interviews Jayman – The Stark Truth With Robert Stark

Mainstream discourse, including the media (and a good part of the scientific establishment itself) spreads false information. Whether it be on IQ, race, heredity, parenting, diet, health, lifestyle, or homosexuality, complete rubbish rules the day. I have attempted to remedy this here.

500px-Flag-map_of_Jamaica.svgTo learn about me, please see my About Me page. There I talk a little about my background as well as provide a roadmap to my earlier publications, including the key pieces new readers should see.


Your first reading after that should be this. The foundation of HBD and indeed all human biological research is behavioral genetics. This has produced four (well, five) laws that are fundamental, the first of which is the plain statement that Did you know that parenting (beyond ensuring your children are healthy and safe and have basic human interaction) has no real impact on how children turn out as adults? That’s right. Read all about it:

The Behavioral Genetics Page


My earlier posting 100 Blog Posts – Reflection on HBD Blogging and What Lies Ahead reviews the topics I’ve talked about in the beginning, including fertility trends, and health and lifestyle wisdom.

My post 200 Blog Posts – Everything You Need to Know (To Start) is just that. Here I review the topics I’ve discussed in the preceding 100 posts, including the matter of guns and violence, the American Nations (the regional ethno/cultural/political divides across North America), and the problems with some of the people who talk about this topic.

A key thing is my series on clannishness, discussing HBD Chick’s work:

Clannishness – the Series: Zigzag Lightning in the Brain

And about those American Nations, my page American Nations Series indexes the posts I’ve written based on the books American Nations: A History of the Eleven Rival Regional Cultures of North America by Colin Woodard and Albion’s Seed: Four British Folkways in America by David Hackett Fischer.



Did you know that most health and lifestyle knowledge is worthless, and probably won’t have much impact on your health or lifespan?


IQ and Death
Trans Fat Hysteria and the Mystery of Heart Disease

On health and lifestyle, there is a lot of nonsense fluff on the matter of obesity. See:

Obesity Facts

And, there’s my critical look at mental health, and a misunderstanding of the role in human evolution in behavioral phenotypes, some of which are not valued by contemporary society

Features and Bugs

In the above post, I discuss homosexuality. The mainstream, accepted explanation for all manner of human behavioral variation, including individual and group differences, is some sort of social conditional or some sort of “environmental” effect. The one exception is sexual orientation, where we’re assured that it is 100% inborn and genetically inherited. Well, it turns out that that is not true. Indeed, this hard to reconcile with the fact that male twins are discordant for sexual orientation at least 75% of the time. See:

Greg Cochran’s “Gay Germ” Hypothesis – An Exercise in the Power of Germs

Also, you may want to see some of my other postings, like on the facts that “Ethnic Genetic Interests” Do Not Exist (Neither Does Group Selection) or about on the non-existence of free will:

No, You Don’t Have Free Will, and This Is Why

Or my post on the heritability (and hence intractability) of religious belief:

The Atheist Narrative

Now I know many of these pages and posts need maintenance (and please do point out such problems if you find them). But that too is something I will have more capacity to do when I have my new laptop. So please donate! Help bring back JayMan!

If you prefer, I will also take Bitcoins (I know they’re currently surging in value)

My wallet is 1DjjhBGxoRVfdjYo2QgSteMYLuXNVg3DiJ

If we can get this going by Christmas, I can take advantage of Christmas sales. And hey, what better Christmas present than contributing to the cause of HBD? Donate today!


November 23, 2017 / JayMan

Happy Thanksgiving 2017!

September 11, 2017 / JayMan

Interview With JayMan

(This is also published at The Unz Review)

I was recently interviewed by Robert Stark (of The Stark Truth). That interview is up as a podcast here:

Robert Stark interviews Jayman – The Stark Truth With Robert Stark

Just to get this out of the way, in this interview I didn’t cover much new ground. Long-time readers will be familiar with what we talk about here. Nonetheless, (quoted from The Stark Truth), here are  the topics:

Robert Stark, Joshua Zeidner, and Sam Kevorkian talk to Jayman. Check out Jayman’s Blog and writings at The Unz Review.


Steven Pinker’s The Blank Slate: The Modern Denial of Human Nature
Arthur Jensen on Human Intelligence
Jayman’s Jamaican heritage
Jayman’s political views; liberal both socially and economically(see: Political Alignment)
Liberalism, HBD, and Solutions
Idiocracy Can Wait?
Jayman’s American Nations Series
Colin Woodard’s book American Nations: A History of the Eleven Rival Regional Cultures of North America
A Tentative Ranking of the Clannishness of the “Founding Fathers
Maps of the American Nations
Demography is Destiny, American Nations Edition
Assortative migration patterns
A Dialect Map of American English
The Donald Trump Phenomenon: The American Nations
The Five Laws of Behavioral Genetics
The ethics of health insurance companies setting rates based on genetic records

The talk is about 1 hour and 10 minutes long. Enjoy!

August 4, 2017 / JayMan

The Five Laws of Behavioral Genetics

(This is also published at The Unz Review.)

The time has come for a review post on the laws of behavioral genetics. I will talk about why these laws are laws and why they are important. Eventually, this will be merged into my Behavioral Genetics Page, but for now, I will start with this primer.

The five laws of behavioral genetics are:

  1. All human behavioral traits are heritable
  2. The effect of being raised in the same family is smaller than the effect of the genes.
  3. A substantial portion of the variation in complex human behavioral traits is not accounted for by the effects of genes or families.
  4. A typical human behavioral trait is associated with very many genetic variants, each of which accounts for a very small percentage of the behavioral variability.
  5. All phenotypic relationships are to some degree genetically mediated or confounded.

All are simple. All can be said in one sentence. Yet all are incredibly profound and terribly underappreciated in today’s society.

For most of the history of the laws, there were only three. The first three were coined by Eric Turkheimer (who has since spent his time trying to undermine his own discovery). Recent genomic studies have added the fourth (Chabris et al, 2015). And Emil Kirkegaard has proposed the fifth based on multivariate behavioral genetic studies. Allow me to review the five laws and their everyday significance.

First Law: All human behavioral traits are heritable.


  • Identical twins raised apart will be similar – and usually highly similar in every conceivable measurement
  • More generally, behavioral and other phenotypic similarity is predicted by genetic similarity for all behaviors and phenotypes, across all human relations, regardless of environmental circumstances. That is, identical twins are more similar than fraternal twins or full siblings, who are more similar than half-siblings, who are more similar than first cousins, and so on ad infintum.

This is underappreciated because this means that all human characteristics, including the things we feel are products of “free choice” or “free will” are in fact heavily dependent on genetic forces. This includes life circumstances, such as where and how you live – even how you grew up. Free will doesn’t exist. Political, religious, and moral views are themselves partly enshrined in the genes. This (or, more specifically, additive heritability) is responsible for continuity within families and within social and ethnic groups. And this is why human societies and behavioral quirks persist, resistant to change.

Second Law: The effect of being raised in the same family is smaller than the effect of the genes.


  • Identical twins raised apart are no less similar than identical twins raised together
  • Non-related individuals reared together are no more similar than random strangers
  • More generally, people growing up together are no more similar than you’d expect from their genetic relationship alone

Also under appreciated, the Second Law talks about the “shared environment” – parents, peers, schools, neighborhoods – all the things children growing up in the same household share. The effect of all those things on any behavioral trait or other phenotype is nil. Zip. Zilch. Nada. Zero. All the things people (especially in the modern West) think matter to children’s development have no effect at all. This includes expensive schools, nice homes, strict discipline, religious indoctrination – none of it matters. No adult outcome shows any effect of shared environment, this includes criminality, marital stability, income, adult happiness, and substance abuse (though note, educational attainment seems to be affected by shared environment, but even here, the effect of education goes away when you look at income). It just doesn’t matter. This strikes squarely against popular belief, making the second law the most vehemently denied of them all.

Third Law: A substantial portion of the variation in complex human behavioural traits is not accounted for by the effects of genes or families.


  • Identical twins (even raised together) are in fact far from identical and differ in significant ways
  • In general, there will be variance left over once genes and shared environmental effects are accounted for

Identical twins may have different handedness, have different fingerprints, and indeed, can differ in criminal history (such as perpetrating a mass shooting).


More poignantly, identical twins can (and in fact, in cases where at least one is gay, usually do) differ in sexual orientation.

Twins differ substantially for cancer incidence – despite having very similar lifestyle habits, indicating that these factors don’t do as much as many think.

Now, while a good bit of this of left over variance turns out to actually be measurement error (i.e., twins are even more similar than they first appear when you watch them long enough/better), the Third Law means that there is more to the story that straight-up genetic forces. Many commenters here try to fill in the blanks with the usual environmental suspects (e.g., schools, peers, differential parental treatment) – ignoring the lessons of the Second Law which shows the nonexistence of any effect of these things. As fingerprints indicate, there are deep developmental forces at work that render many of these ideas unnecessary – indeed, nonsensical in many cases. Or, in the case of sexual oriental, the distinguishing force may be something largely outside our control, such as pathogens (see Greg Cochran’s “Gay Germ” Hypothesis – An Exercise in the Power of Germs). The Third Law indicates that chance effects can dash our best laid plans.

Fourth Law: A typical human behavioral trait is associated with very many genetic variants, each of which accounts for a very small percentage of the behavioral variability.


  • Genomic studies have found few genetic variants that have a large effect on behavioral traits

This is mostly of concern for breeding or for genetic engineering. This puts the kibosh on simplistic notions of a “gene for X”, because in reality there are a plethora of genetic variants at play in a given behavioral trait. This is why, despite the progress being made in genetic modification, it will be still a while yet before “made to order” designer babies are a reality.

Fifth Law: All phenotypic relationships are to some degree genetically mediated or confounded.


  • Whenever there is an association between two phenotypes (such as poverty and crime), there will be a genetic association driving both

And finally, I come to Emil Kirkegaard’s newly coined law, one that is vastly underappreciated. This was drawn from studies like those of Amir Sariaslan’s and others showing the confounded nature of phenotypical associations (even extended phenotypes like social circumstances). This essentially strikes at the heart of modern social science (and for that matter, medical science), which assumes, wrongly, that association between social and/or behavioral factors is an indication that one causes the other. In reality, genetic forces cause both. Indeed, we see this with health and lifestyle: people who exercise more have fewer/later health problems and live longer, so naturally conventional wisdom interprets this to mean that exercise leads to health and longer life, when in reality healthy people are driven to exercise and have better health due to their genes.

* * *

I could go on and also talk about another thing that bugs me, namely twin control studies, which basically apply a version of the confounded wisdom seen in the Fifth Law. Namely such studies assume that correlations in unshared environment (i.e., the matter of the Third Law) as causal, ignoring the substance of the Third Law in the process (i.e., unshared biological forces could cause both factors of interest). But, this will be a topic for another day.

These are dangerous times for biosocial science – societal and political forces make this matter difficult to discuss or research. A reckoning is approaching, and it is unclear how it will turn out. In the mean time, technology and our understanding of the forces at play marches on, waiting for our society to catch up.





February 8, 2017 / JayMan

The Genetics of the American Nations

(This is also published at The Unz Review)

Throughout my American Nations series (based on the books American Nations: A History of the Eleven Rival Regional Cultures of North America by Colin Woodard and Albion’s Seed: Four British Folkways in America by David Hackett Fischer) I’ve talked about how North America is divided into distinct ethnocultural regions based on historic settlement patterns.

North American Nations 4 3

These various regions are visible in many ways, from dialect, politics, enlistment in the military, support for marijuana, average IQ (Maps of the American Nations), attitudes towards the death penalty, abortion, guns, same-sex marriage, and school corporal punishment, as well as overall health, lifespan, and behaviors such as smoking and drug use (More Maps of the American Nations & HBD Is Life and Death):


Support for same-sex marriage

Support for same-sex marriage

White Age-Adjusted traffic death rates county 2004-2010

Previously I’ve established that these boundaries reflect genetic differences among different Americans in different places. This is because all human behavioral traits are heritable, with “nurture” (as it’s commonly thought of) playing a minimal to nonexistent role in each. This means that genetic differences between different peoples lead to differences in their behavioral traits, which, collectively, manifests as cultural differences. As John Derbyshire put it, “if dimensions of the individual human personality are heritable, then society is just a vector sum of a lot of individual personalities.” See my Behavioral Genetics Page for more.

It’s also important to note that (as I’ve discussed previously in this series) assimilation is largely an illusion. Cultural and behavioral characteristics can persist for many generations as long as the people who exhibit them remain.

And now, a new paper in Nature bears out the genetic roots of the American nations. In “Clustering of 770,000 genomes reveals post-colonial population structure of North America” (Han et al, 2017), we see that Americans can easily be partitioned into distinct regional clusters:

These clusters map very closely to the boundaries of the American nations, as we can see when they’re superimposed:


Using the vast genomic database of, the authors were able to partition Americans into distinct clusters. As the authors report:

Here we identify very recent fine-scale population structure in North America from a network of over 500 million genetic (identity-by-descent, IBD) connections among 770,000 genotyped individuals of US origin. We detect densely connected clusters within the network and annotate these clusters using a database of over 20 million genealogical records. Recent population patterns captured by IBD clustering include immigrants such as Scandinavians and French Canadians; groups with continental admixture such as Puerto Ricans; settlers such as the Amish and Appalachians who experienced geographic or cultural isolation; and broad historical trends, including reduced north-south gene flow. Our results yield a detailed historical portrait of North America after European settlement and support substantial genetic heterogeneity in the United States beyond that uncovered by previous studies.

They describe their methods:

To investigate recent, fine-scale population structure in the United States, we leveraged one of the largest human genetic data sets assembled to date: genome-wide genotypes of 774, 516 individuals born (96%) or currently residing (4%) in the United States (Supplementary Table 1; Supplementary Fig. 1). All individuals were genotyped at 709, 358 autosomal single-nucleotide polymorphisms (SNPs) using the Illumina Human OmniExpress platform as part of the AncestryDNA direct-to-consumer genetic test, and have consented to participate in research (Methods). In this sample, we analysed patterns of identity-by-descent (IBD)16, which have been shown to reveal signatures of recent demographic history3,17,18,19,20,21. If two individuals share an ancestor from the recent past, they will likely carry one or more long chromosomal segments inherited IBD from that ancestor.

In short, their giant sample and rich genealogical data allowed them to detect large patterns of shared ancestry in living Americans. And, as expected the American nations clearly emerge from the genetic data. 

How did this pattern emerge? In short, this is ultimately the result of the four British folkways of Albion’s Seed. Here the genetic data show that they remain alive and well. Previously, in my post Genes, Climate, and Even More Maps of the American Nations, we saw that the founding British colonists came from distinct parts of the British Isles and settled in different parts of North America. The founding British stock are themselves visible in the genetic data, as we saw from fine-scale analysis of Britain (Leslie et al 2015, ungated link here):


As I put it in Genes, Climate, and Even More Maps of the American Nations:

Genetic differences between groups of people, once established, persist as long as the different groups do until diluted or erased by admixture (this is known as the Founder effect). As well, new differences can emerge within a single population as selective migration leads this initial population to fission into two or more daughter populations (see here and here – more on that to follow).

In short, tiny genetic differences between two groups of people can lead to large differences in behavioral traits. This extents to all facets of human behavior – a point driven home by a recent paper correlating linguistic diversity across Europe with genetic diversity there (Longobardi et al, 2015).

But why do the American nations follow the pattern that they do? It turns out that this pattern was hardly a coincidence.

The founding colonial groups landed at various spots across the North American east coast:

From there, the nations spread westward across the continent. However, they did so in a certain way, as the next map will show:

Climate North America Nations


Geography dictated the settlement of the country:

wood_expansionAn example of this process can be seen in the settlement of the “upper Midwest” (Hudson, 1986):

yankeeland.middle.westSettlers moved to places where they could easily transplant their way of life. Areas of similar climate obviously aided in that aim. In the upper Midwest, Yankee and Midland settlers were joined by German and Scandinavian immigrants (as detailed in the preceding posts), who were also coming to areas climatically similar to their old homes.

These settlements have left their genetic as well as cultural mark across the continent.

Now, it’s important to understand what these data actually mean. These clusters do not mean that the descendants of the colonial settlers are numerically dominant in their respective regions, because they are not. Over the course of the continent’s history, the descendants of the original settlers were joined by subsequent immigrants, mostly other Europeans, who themselves settled in different parts of the country. As we saw previously in Demography Is Destiny, American Nations Edition:

ancestries mapped fulford

ancestry timeline

(Tables are from Fulford, Petkov, and Schiantarelli, 2015). These other ethnic groups have a huge impact on the character of the modern United States (and Canada), as we saw on display during the recent presidential election (see The Donald Trump Phenomenon: Part 1: The American Nations).

So what then do the clusters of Han et al mean? While the original colonial ancestry of the country has been overrun by subsequent migrants, the founding stock remain as a genetic undercurrent – a common genetic thread – within each American nation. This is especially true in the nations of the American South, where the colonial settlers received less subsequent migration and the original stock remains strong. As Han et al put it:

Taken together with the IBD network clustering results (Table 1), the visualizations of the genealogical data in North America (Fig. 3) highlight broad-scale demographic trends, as well as patterns specific to individual populations

The five largest clusters (third set of rows in Table 1), which we describe as assimilated immigrant clusters, account for a large portion (60%) of the IBD network and exhibit a markedly different profile. Lacking distinctive affiliations to non-US populations, they show almost no differentiation in allele frequencies (FST at most 0.001; Supplementary Table 5) and high levels of IBD to non-cluster members (Supplementary Data 2), suggestive of high gene flow between these clusters. Moreover, few members of these clusters could be assigned to a stable subset, indicating that this clustering is largely driven by continuous variation in IBD. Genealogical data reveal a north-to-south trend (Fig. 5), most consistently east of the Mississippi River (Fig. 3). These findings imply greater east-west than north-south gene flow, which is broadly consistent with recent westward expansion of European settlers in the United States, and possibly somewhat limited north-south migration due to cultural differences.

The descendants of the Puritans, for example, while hardly the dominant genetic group across Yankeedom, nonetheless cluster together because people across Greater New England share that ancestry. This is true for the other nations as well.

Curiously, Han et al seem to have found two distinct currents of Appalachian settlement. I’m unclear about what this represents.

Some more interesting bits of information appear when you dig into Han et al’s supplementary info:


For Yankeedom, we see that the inferred genetic origin area is encompasses East Anglia and Kent, the home of the Puritan settlers. We also see the Scandinavian signal that is the home of many Mormon converts.

This group is also evident along the Left Coast, reflecting the Yankees’ historical settlement there.


For the Midlands, we see that the inferred source area is around Yorkshire in England. Also, the strong German signal corresponds to the Palatine.



For some reason, two Appalachian populations seem to appear. The main difference in Europe appears to be a stronger signal from Germany in the northern population.


For the Tidewater and Deep South, the home of the English Cavaliers (see The Cavaliers) in Southwest England is evidence. The Scottish link (presumably Scots-Irish that settled in the Deep South) is also visible.

These are the “Midwestern immigrants”. As expected, this group is heavily Scandinavian and Eastern European (mostly Polish and Czech/Slovak). However, what’s interesting to me here is that the German settlement here is different from the Germans that settled in the east. These Germans aren’t so heavily from the Palatine, but are from farther north and east. This is interesting in light of my earlier post Germania’s Seed?; different German-Americans in different parts of the country hail from different parts of Germany. Behavioral differences among these different German-Americans are expected.

The genetic data now serve as the final confirmation of the existence of the American nations (if the mass of other data wasn’t already sufficient). These regional differences have and continue to have huge implications for American society, including the ongoing cultural and political struggle that is now playing out.

Indeed, even in the 2016 presidential election (despite being a bit less regionally skewed than previous years) the American nations still were clearly divided in same ways they were previously:


This is from Woodard’s How Colin Woodard’s ‘American Nations’ explains the 2016 presidential election. There he gives a fine analysis of the regional split in the vote. Rest assured, the divide would be more stark if the White vote alone were examined, especially for the Tidewater, the Deep South, and the Far West.

Trump did manage to pick up considerable support in Yankeedom and the Midlands relative to 2012 and 2008, but the regional split remains.


As it has remained throughout the country’s history. Understanding these divides will be key to understanding our country and its future.

Of course, if you like my work, please do feel free to support it. You can donate via PayPal (accepting Visa and Mastercard) via the button below or to the right:


I am also accepting Bitcoins for those who prefer to use this route. My Bitcoin address is: 1DjjhBGxoRVfdjYo2QgSteMYLuXNVg3DiJ


Also you can pledge a recurring donation per publication through Patreon:

tumblr_ntgbmfWOoH1qeu1kfo2_5001Thank you very much for your donations!

January 26, 2017 / JayMan

Broken Links/Images

Things go offline on the internet (a massive pain in the butt). If you find any broken links or missing images on my many posts, columns, and pages, please do report them here. Once I get a list compiled, I’ll try to fix them.