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About Me

500px-Flag-map_of_Jamaica.svgCoat_of_Arms_of_Jamaica1

Hi, welcome to my blog. I am an ever-curious observer of the world, with a passion for understanding the universe in which we inhabit. I am particularly interested in humans and human nature, understanding human similarities and as well human differences.

As you can see from the national emblems above, I am a second generation Jamaican-American of Black, White (English), and Chinese descent, living the motto “out of many, one people.”

On this blog, I talk a lot about Human BioDiversity* or HBD. This is the field of research concerned with heritable human differences, between individuals and between human groups, including gender and ethnicity. You will see a lot of posts discussing heritable human differences, and the impact of said differences on society.

I discuss this because – beyond the simple fact that it fascinates me – because I want to understand how the world actually is, as any good scientist should. Unfortunately, the study of heritable human traits, particularly when it comes to human differences, is currently unfashionable in the Western world. It is regarded as a taboo topic in mainstream public discourse, costing people their careers and stymieing research in the field. In my search for the truth, I am not inclined to shy away from a topic just because it’s taboo, if it’s what I must do to uncover the truth.

As a person of color who grew up in the American inner city, I have had exposure to a variety of different human societies, making me curious about human differences. Now I seek to explore and understand those differences.

Politically, I’m very liberal, (see: My Political Alignment), both socially and economically. However, it’s important to always put one’s political views second to the facts about reality. Unfortunately, many people seem unable to do so, leaving the truth to get mired in personal and institutional dogma.

I am also an atheist, but I don’t see this as being particularly special, as this is only as any scientist naturally should be, although I understand and accept that that is not always possible (see “HBD and Atheism” below).

First and foremost, if you’re new to HBD, and want to know what this human biodiversity stuff is all about, and would like a quick and concise primer into this HBD stuff, especially a treatment of the common misconceptions/misinformation on the topic, see my page JayMan’s Race, Inheritance, and IQ F.A.Q. (F.R.B.)

And for the important pieces of evidence, please see my page HBD Fundamentals for a list of key reading and pieces of evidence for HBD. For those without any background on the topic, I strongly recommend the four books under the “Start with” section. However, if you want a less dense introduction to the topic, I’d recommend my blog posts below.

If you’re new to my blog, to understand where I’m coming from, I recommend that you read the following posts, ideally in the order listed (this list will be updated as new posts are added):

Start here: Why HBD

All Human Behavioral Traits are Heritable

Environmental Hereditarianism

NEW The Son Becomes The Father

NEW More Behavioral Genetic Facts

How Much Hard Evidence Do You Need?

IQ Ceilings?

An HBD Summary of the Foundations of Modern Civilization

How Inbred are Europeans?

A Tale of Two Maps

Welcome Readers from Portugal!

More on Farming and Inheritance Systems – Part I: IQ

Finland & Japan

See my series on the historical and genetic roots of the ideological and other psychological differences among White Americans in different regions of the country. I would suggest reading these posts in the following order:

A Tentative Ranking of the Clannishness of the “Founding Fathers”

Flags of the American Nations
The Cavaliers

Maps of the American Nations

NEW More Maps of the American Nations

Rural White Liberals – a Key to Understanding the Political Divide

Sound Familiar?
Germania’s Seed?
Religions of the American Nations
Nations of Canada
Colors and Lights
Acadie
Snow Nations

Be sure also to see this post on the nature of rational inquiry: Carl Sagan’s Baloney Detection Kit

For a review of the major topics I’ve discussed on my blog, see this post: 100 Blog Posts – A Reflection on HBD Blogging And What Lies Ahead

As well, be sure to see the posts covering my “pioneer hypothesis”, talking about fertility trends and their relation to political orientation and colonial history:

Liberalism, HBD, Population, and Solutions for the Future
A follow-up: Ethnicity and Politics
Another Tale of Two Maps
The Liberal/Conservative Baby Gap: Time Depth
Further Testing the Pioneer Hypothesis: Canada and Russia
Why sub-replacement fertility is not necessarily all that bad
Expectations and reality: a window into the liberal-conservative baby gap
Dystopian Conservative Future?

My other posts on fertility trends:

Solutions, Again
A Success Story?
Are you missing out by not having kids? Your DNA sure is…
For every person that doesn’t want kids there are 25 that do. Is that so?
A Tale of Three Maps
Fertility and Happiness: A Global Perspective
Another reminder…
Who’s Having the Babies?

My posts on parenting and psychological development:

Taming the “Tiger Mom” and Tackling the Parenting Myth
Should Parents Lose Custody of Obese Kids?
About Developmental Noise
Little Emperor Syndrome my…
Apples, Oranges, and Lesbians: The Nurture Assumption Just Will Not Die

My posts on health, particularly questioning the conventional wisdom on obesity and cardiovascular health:

A Fat Problem With Heart Health Wisdom
Exercise, weight loss, and keeping you alive – yet another tale of maps
And Yet Another Tale of Two Maps
A Fat World – With a Fat Secret?
Fun Facts About Obesity
Gary Taubes on Obesity and Bad Science
Obesity and IQ
IQ and Death
Even George W. Bush Has Heart Disease
Trans Fat Hysteria and the Mystery of Heart Disease
NEW HBD is Life and Death
NEW Sugar & Antibiotics

My posts on gender, sex, and sexual identity/orientation:

Special Post: The Decline of Male Homosexuality
The Evolution of Female Bisexuality
A Gay Germ? Is Homophobia a Clue?
Gay Germ Fallout?
NEW Greg Cochran’s “Gay Germ” Hypothesis – An Exercise in the Power of Germs

IQ and Kink?

The Leaks in the Pipeline Found?
Beauty and brains: not always together?
Women and Sleep

Sure it does…
Some guys get all the babes – not exactly
It’s not the cads, it’s the tramps
“Manosphere” Community Beliefs: Truths and Nonsense

My posts on more philosophical topics, such as religion and free will:

HBD and Atheism
What if it’s not their fault? The myth of free will.
Sam Harris on free will
The Meaning of it All…
The Atheist Narrative
No, You Don’t Have Free Will, and This is Why

My posts on astronomy and the future prospects of human space travel/colonization:

A Whole New World
A Less Lonely Universe

My posts may also be viewed by category, by clicking the categories from the cloud at right.

Learning about the facts of human nature and the reality of biological human differences may force one to abandon certain hopes and dreams about how to make a world. One must have a certain amount of Serenity in order to accept the biological reality.

iss-flying-over-planet-earthAs for my WordPress/Twitter avatar, this is a still from a video of the International Space Station flying over the Earth. I chose this photo because it speaks to all that we discuss, and more. HBD’ers talk about the world around us and its people, which is represented by the whole Earth, seen in all its brilliant glory below the space station in this photo. But the starry sky lying above is a reminder that this world is but a tiny part of an entire universe beyond it. The ISS in the foreground is itself a sign of Man’s ability and desire to reach into this great beyond. This photo is perfectly symbolic.

Be sure as well to follow me on Twitter!

*See this 13-minute video of Steve Sailer, who coined the term human biodiversity, discussing it.

My current theme song. Rock out with The Rock!

44 Comments

Leave a Comment
  1. Kiwiguy / Jan 15 2013 10:55 PM

    Really interesting site JayMan.

    • JayMan / Jan 19 2013 7:00 PM

      Thank you!

  2. Staffan / Jan 16 2013 8:20 AM

    Great blog. I just hope more people will discover it.

    • JayMan / Jan 19 2013 7:00 PM

      Thanks, and thanks! ;)

  3. Kevin / Jan 17 2013 5:02 AM

    Let me to say that I’ve realized you’re a regular reader and commentator on Chateau Heartiste’s website. I think your trend towards these kind of subcultural trash and PUA scam sites makes you lose intellectual category. That discredits you as a scientific blogger.

    • JayMan / Jan 17 2013 10:48 AM

      Don’t tell me you’re going to fall victim as well?

      If you’ve read my posts there, you’d see that I often criticize the non-scientific conclusions that are often put forward by Heartiste and his commenters. I will agree when he raises a valid point, however.

      I call it as I see it. If you’re right, I’ll say so. If you’re wrong, well, I’ll also say so…

  4. Harold / Jan 17 2013 6:28 AM

    You’re not going to take up Chris on his offer?

  5. Kevin / Jan 17 2013 12:25 PM

    Im sorry if you felt offended. I use to visit site for reading all these game ridiculous ideas. Something about that PUA guy, his blog has always sent red flags of Bullshit to my sub-conscience. His patterns include elaborates some pseudoscientific explanations. Loaded with misogyny and biased perceptions, and most of them are contradictory. It seems he delete controversial comments, mainly anti-game comments.

    I’ve tried to write to refute your comments but I am always censored. You’ve never published any of my critical comments. I have to say that he also writes decent content on anti-feminist and sociobiology. But this dude’s blog activities are suspect! Most his a article get 150-200 comments within 3 hours or less! Is it impossible? No, but highly unlikely (without input from the blog’s author).

    – I read few of those comments, and they were incoherent and inconsistent with the article’s theme.

    – Hardly None of those comments came from fellow bloggers, aspiring PUA’s or Manosphere guys(as usual).

    So who the fuck is commenting on Heartiste’ posts then!!!?

    My detective-like intuition tells me that this MOFO is rigging his blog’s commentary in order to make his blog appear more active than it actually is.

    To add more wood to the flame, my hunch says that he actually concocts and pre-fabricates 95% of the comments on his posts. In layman’s term: he pre-writes his own comments, and somehow schedules them to be posted at intervals [nice trick lol].

  6. kevin / Jan 17 2013 12:36 PM

    I wanted to write “he has never published” and “to refute his comments”
    It was a mistake sorry

  7. Staffan / Jan 17 2013 4:09 PM

    For some reason I only reach the “about” page of this blog. Is this intentional? I rather see the most recent post first like in most blogs.

    • JayMan / Jan 19 2013 6:58 PM

      It was, I wanted to be sure people saw my “About Me” page. It’s changed back now.

  8. denise / Jan 20 2013 5:46 PM

    Great blog, I love it. I just stumbled on it and I’ll be working my way through your old posts.
    Do you study this stuff for a living?

  9. coward / May 22 2013 4:40 PM

    Hey, man, I’m Coward. I came here from the link on Robert Lindsay’s blog. I can identify with your racial background; like you, I am part Black, part White, and part Asian (Native American). I am a race realist, so I strongly agree with your views that all human behavioral traits are inheritable. I am glad to find another Black person who thinks this way. I love your motto: “Out of many, one people”. I look foward to seeing your posts! Keep up the good work!

    • JayMan / May 22 2013 5:17 PM

      Well welcome aboard, and thanks! Yeah, there aren’t too many of us, aren’t there (or they stay awfully quiet)?

      The next post is my 100th post, so stay tuned!

  10. frank / May 30 2013 10:03 PM

    what city are you in jayman”

  11. Frank / Jun 1 2013 7:29 PM

    I’ll try again, with decent capitalization and punctuation – what city are you in? I only ask because I’m in New York for a few weeks, and if you were there – as I suspect – I was hoping we could get together. I appreciate your work.

    Frank

    • JayMan / Jun 1 2013 9:55 PM

      Unfortunately, I won’t be in New York until maybe next year. Thanks for the offer and the compliments, though! :)

  12. Frank / Jun 1 2013 11:27 PM

    Too bad.

    You’re welcome. You do a nice job.

  13. jewamongyou / Oct 3 2013 10:15 PM

    I’ve got to check out your most interesting site more often. Good stuff here. By the way, in your most recent post about corporal punishment, I assume you meant (in the first line) “corporal” and not “corporate”.

    • JayMan / Oct 3 2013 10:18 PM

      @jewamongyou:

      Thanks! Be sure to see my 100th blog post and my HBD Fundamentals page.

      Thanks for the heads up on the typo. Fixed!

  14. shakil / Oct 24 2013 1:08 PM

    free will is real

    • JayMan / Oct 24 2013 1:08 PM

      Based on what? Your say so?

  15. nancylebovitz / Dec 13 2013 11:30 AM

    Hi– I just found your blog, and was impressed by the connection that lactose intolerance means getting fewer calories from dairy. It’s so obvious, but I haven’t heard it elsewhere.

    Your cardiovascular death rate map for Europe might fit with the idea that more sunlight = better heart health.

    Do you know of any research about the extent to which people overreact to human differences?

  16. Rolf Muertter / Dec 28 2013 3:21 PM

    I just found your blog, and I have to say, I wish I had found it earlier. I have also been interested in human nature and HBD for many years, and for the last few years I’ve focused more on the ecological aspects of human nature. I’m particularly interested in understanding human ecological dominance and what it means for the biosphere. I believe my Darwinian demon theory explains this aspect of human nature, and I just started writing about it on my blog darwiniandemon.com. As you will see, I also like to cut through the BS!

    • JayMan / Dec 28 2013 6:19 PM

      @Rolf Muertter:

      Thanks, I’m glad you enjoy the blog! I will be sure to check out your work!

  17. Jeff / Mar 17 2014 8:44 PM

    Could you offer us your thoughts on the cohabitation study that was in the news recently?

    My guess is that divorce “predisposition” (for lack of a better word) is genetically determined.

  18. Emil OW Kirkegaard / Mar 29 2014 10:27 PM

    JayMan, would you like to join the reviewer team for our open access journals Open Differential Psychology and Open Behavioral Genetics? Site here: http://openpsych.net/ We are trying to bring openness to the study of HBD related fields, instead of the closed access, non-data sharing that goes on in Intelligence and PAID.

    Please contact me at my email. :)

  19. derpsy / Jun 2 2014 5:31 AM

    So I just discovered your blog. I’m very new to all this, and I am wondering what you have pursued as a college major, and to what degree level?

  20. Comacat / Jun 20 2014 3:03 PM

    Dear Jay Man, (bad english coming !).

    I am a young black african male (20) and I wanted to share some thought with you.

    I love neuroscience and especially the intelligence field. I am very aware of the reality of IQ (but I think scientists should accept the fact that people will never accept this as “intelligence”, it’s a vocabulary problem)

    I am aware of group differencies among sex, race… And I don’t really care, to be honnest, genetic don’t mean eternal nor “more valuable/better”, but this matter, whatever people like it or not.

    So I’m not surprised other black people are aware of this. (Even if I’m pretty sure in your case your white/asian admixture is not just a detail in your identity).

    But HBD.
    Seriously, HBD.

    There is a huge difference between science and racism, contrary to what your HBD friends think.

    I can read books like the Bell Curve because it’s facts. But look at HBD timeline on Twitter.

    “Feminism is for ugly women” Really ?
    Black assault pregnant white women ? is this SCIENCE ?

    And look at their “bibliography”. Some of their links are just people saying “Hey, I’m black and I agree”, and others are (false) old nazis theories. Have you seen what these hypocrites think (yes, “think”, not “know”) of mixed people ?

    There are numerous neutral blogs on the subject of intelligence (and cognitive genomics, in general) but HBD is not one of them.

    They are pro-white. Here’s the reality.

    Some people don’t like the idea of people having different level of intelligence.
    HBD crowd LOVE this idea. (Why would you HATE epigenetics ? This is a young science, but this a science too, if people could possibly deviate a little their offspring’s genetic fate, well, isn’t this a good news and a way to fill the gaps ?)

    In both case, this is not science. There are feelings and opinions.

    Once again, there is definetely a strong line between science and racism, sorry.
    I know what is science and what is disguised hate toward some people (aka = me. And I don’t have admixure as a “consolation prize”).

    Science is science but human have goddamn feelings. Saying truth is ok. Saying your opinion hidden under a truth is the worst thing humans can do.

    What is your opinion about this ? I think you’re not exactly like your HBD friend, but please stop using yourself as an “black caution” for HBD people.

    • JayMan / Jun 20 2014 3:35 PM

      @Comacat:

      Yes, I would agree that there is a huge difference between science and racism.

      That said, “science that demonstrates conclusions I don’t like” ≠ racism. Plain and simple.

      But look at HBD timeline on Twitter.

      “Feminism is for ugly women” Really ?
      Black assault pregnant white women ? is this SCIENCE ?

      Read this:

      The Problem with HBD, the Dark Enlightenment, Neoreaction, Alt-Rightism, and All That Jazz

      I have had my fair share of differences with the people that often fly under the “HBD” banner.

      Why would you HATE epigenetics ? This is a young science, but this a science too, if people could possibly deviate a little their offspring’s genetic fate, well, isn’t this a good news and a way to fill the gaps

      First off, epigenetics (specifically, transgenerational epigenetics) is complete garbage. Whatever meager bits of truth there may be to it (likely not much at all) means very little or nothing for the big picture of individual and group differences in psychological traits and other traits. See here:

      Science isn’t about “liking” or “hating” things. It is solely about (or should be) what’s true and what’s false. Good scientists keep that as their sole guideline.

      Science is science but human have goddamn feelings. Saying truth is ok. Saying your opinion hidden under a truth is the worst thing humans can do.

      I get what you mean, but I wouldn’t agree with that specific statement. What’s true is still true even if it is uttered for nefarious purposes.

      That said, yes, there are more than a few unsavory characters that embrace HBD for nefarious purposes. See what I wrote in my post above for my thoughts on the matter.

Trackbacks

  1. A Fat Problem With Heart Health Wisdom « JayMan's Blog
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  8. Clannishness, Clans and Locating Ancestral Origins? | DNAeXplained – Genetic Genealogy
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  11. John Derbyshire On JayMan—A Righteous Jamaican-American | VDARE.COM
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