Jay Joseph
@jayjoseph22.bsky.social
Psychologist/author deconstructing behavioral/psychiatric genetic research and theories. Author of "Schizophrenia and Genetics: The End of An Illusion" (2023). https://jayjoseph22.substack.com/
Pinned
The 2023 Cremieux Reared-Apart Twin IQ Figure: Pretty Colors, Nothing There
A recent critical review of Thomas J.
jayjoseph22.substack.com
A recent critical review of Thomas Bouchard’s “Minnesota Study of Twins Reared Apart” (MISTRA) by David Bessis led me to take a closer look at a 2023 IQ genetic figure created and posted by Cremieux.
My new Substack post:
jayjoseph22.substack.com/p/the-2023-c...
My new Substack post:
jayjoseph22.substack.com/p/the-2023-c...
Reposted by Jay Joseph
pinker should shadow the doctors for a day and THEN see if he feels like slandering them
January 2, 2026 at 1:03 AM
pinker should shadow the doctors for a day and THEN see if he feels like slandering them
Reposted by Jay Joseph
This winter the Israeli government has not stopped committing genocide in Gaza, and the US has not stopped funding it.
December 31, 2025 at 9:03 PM
This winter the Israeli government has not stopped committing genocide in Gaza, and the US has not stopped funding it.
Reposted by Jay Joseph
Mad in America’s 10 Most Popular Articles in 2025
A roundup of Mad in America's most read blogs and personal stories of 2025 as chosen by our readers.
www.madinamerica.com/2025/12/mad-...
A roundup of Mad in America's most read blogs and personal stories of 2025 as chosen by our readers.
www.madinamerica.com/2025/12/mad-...
Mad in America’s 10 Most Popular Articles in 2025
A roundup of Mad in America's most read blogs and personal stories of 2025 as chosen by our readers.
www.madinamerica.com
December 31, 2025 at 4:06 PM
Mad in America’s 10 Most Popular Articles in 2025
A roundup of Mad in America's most read blogs and personal stories of 2025 as chosen by our readers.
www.madinamerica.com/2025/12/mad-...
A roundup of Mad in America's most read blogs and personal stories of 2025 as chosen by our readers.
www.madinamerica.com/2025/12/mad-...
Reposted by Jay Joseph
and for a more recent analysis of how immigration restriction was a goal of the "race suicide" enthusiasts, see:
www.nejm.org/doi/full/10....
www.nejm.org/doi/full/10....
December 3, 2025 at 6:53 PM
and for a more recent analysis of how immigration restriction was a goal of the "race suicide" enthusiasts, see:
www.nejm.org/doi/full/10....
www.nejm.org/doi/full/10....
Reposted by Jay Joseph
There is a unity of message coming out of this administration. It echoes, sometimes verbatim, the messages of early 20th Century eugenics. Here is an example from a 1919 article by Prescott Hall, a leader of the immigration restriction movement, describing immigrants as a public health threat.
December 4, 2025 at 4:21 PM
There is a unity of message coming out of this administration. It echoes, sometimes verbatim, the messages of early 20th Century eugenics. Here is an example from a 1919 article by Prescott Hall, a leader of the immigration restriction movement, describing immigrants as a public health threat.
Reposted by Jay Joseph
Hall's comments were quoted verbatim in an openly white supremacist volume of the era: The Rising Tide of Color against White World-Supremacy by Lothrop Stoddard. This book was parodied by Scott Fitzgerald in The Great Gatsby. Stoddard and his ilk wrote the script you are hearing repeated today.
December 4, 2025 at 4:38 PM
Hall's comments were quoted verbatim in an openly white supremacist volume of the era: The Rising Tide of Color against White World-Supremacy by Lothrop Stoddard. This book was parodied by Scott Fitzgerald in The Great Gatsby. Stoddard and his ilk wrote the script you are hearing repeated today.
Reposted by Jay Joseph
Today's lesson in eugenic history
December 11, 2025 at 6:18 PM
Today's lesson in eugenic history
Reposted by Jay Joseph
Davenport believed that temperament was inherited. His book The Feebly Inhibited suggested that paupers and criminals often lacked both intelligence and self control --feeblemindedness and feeble inhibitions worked hand in hand to cause social problems.
December 27, 2025 at 10:26 PM
Davenport believed that temperament was inherited. His book The Feebly Inhibited suggested that paupers and criminals often lacked both intelligence and self control --feeblemindedness and feeble inhibitions worked hand in hand to cause social problems.
Reposted by Jay Joseph
or US eugenics in 1914, etc.
December 30, 2025 at 5:29 PM
or US eugenics in 1914, etc.
Reposted by Jay Joseph
Look for this twist as Trump Fund baby rules are released:
December 30, 2025 at 5:36 PM
Look for this twist as Trump Fund baby rules are released:
Reposted by Jay Joseph
The argument that poverty and crime are caused by intellectual deficits and lack of self-control was made regularly by leaders in eugenics like Walter Fernald. This is Fernald in 1912, giving a lecture about "The Burden of Feeble-Mindedness" printed in the Boston Medical and Surgical Journal.
December 27, 2025 at 10:26 PM
The argument that poverty and crime are caused by intellectual deficits and lack of self-control was made regularly by leaders in eugenics like Walter Fernald. This is Fernald in 1912, giving a lecture about "The Burden of Feeble-Mindedness" printed in the Boston Medical and Surgical Journal.
Reposted by Jay Joseph
Every time you hear about "low IQ people" you should realize the eugenic echoes are just getting louder:
December 11, 2025 at 10:26 PM
Every time you hear about "low IQ people" you should realize the eugenic echoes are just getting louder:
Reposted by Jay Joseph
The message is the same as always:
December 15, 2025 at 11:18 PM
The message is the same as always:
Reposted by Jay Joseph
It is a very old lie: see 1913
December 23, 2025 at 5:39 PM
It is a very old lie: see 1913
Reposted by Jay Joseph
Just as they also dubbed hookworm “the germ of laziness”
100 years ago, eugenicists and others were sure that pellagra was a genetic disease, and not a disease of poverty, as it actually was.
December 27, 2025 at 2:39 PM
Just as they also dubbed hookworm “the germ of laziness”
100 years ago, eugenicists and others were sure that pellagra was a genetic disease, and not a disease of poverty, as it actually was.
December 26, 2025 at 4:44 PM
100 years ago, eugenicists and others were sure that pellagra was a genetic disease, and not a disease of poverty, as it actually was.
Reposted by Jay Joseph
A recent critical review of Thomas Bouchard’s “Minnesota Study of Twins Reared Apart” (MISTRA) by David Bessis led me to take a closer look at a 2023 IQ genetic figure created and posted by Cremieux.
My new Substack post:
jayjoseph22.substack.com/p/the-2023-c...
My new Substack post:
jayjoseph22.substack.com/p/the-2023-c...
The 2023 Cremieux Reared-Apart Twin IQ Figure: Pretty Colors, Nothing There
A recent critical review of Thomas J.
jayjoseph22.substack.com
December 21, 2025 at 6:52 PM
A recent critical review of Thomas Bouchard’s “Minnesota Study of Twins Reared Apart” (MISTRA) by David Bessis led me to take a closer look at a 2023 IQ genetic figure created and posted by Cremieux.
My new Substack post:
jayjoseph22.substack.com/p/the-2023-c...
My new Substack post:
jayjoseph22.substack.com/p/the-2023-c...
A recent critical review of Thomas Bouchard’s “Minnesota Study of Twins Reared Apart” (MISTRA) by David Bessis led me to take a closer look at a 2023 IQ genetic figure created and posted by Cremieux.
My new Substack post:
jayjoseph22.substack.com/p/the-2023-c...
My new Substack post:
jayjoseph22.substack.com/p/the-2023-c...
The 2023 Cremieux Reared-Apart Twin IQ Figure: Pretty Colors, Nothing There
A recent critical review of Thomas J.
jayjoseph22.substack.com
December 21, 2025 at 6:52 PM
A recent critical review of Thomas Bouchard’s “Minnesota Study of Twins Reared Apart” (MISTRA) by David Bessis led me to take a closer look at a 2023 IQ genetic figure created and posted by Cremieux.
My new Substack post:
jayjoseph22.substack.com/p/the-2023-c...
My new Substack post:
jayjoseph22.substack.com/p/the-2023-c...
We've been hearing such unsubstantiated claims since the 1960s. We should instead focus on how the media reports each new "discovery by scientists" as if 5+ decades of refuted claims never happened. Even Charlie Brown recognized that Lucy had fooled him before.
www.madinamerica.com/2025/08/the-...
www.madinamerica.com/2025/08/the-...
Scientists Identify First Proven Single-Gene That Causes Mental Disorders | GRIN2A gene mutations emerge as single-gene cause of childhood schizophrenia, anxiety, and mood disorders, potentially enabling treatments. | studyfinds.org/single-gene-...
Scientists Identify First Proven Single-Gene That Causes Mental Disorders
GRIN2A gene mutations emerge as single-gene cause of childhood schizophrenia, anxiety, and mood disorders, potentially enabling treatments.
studyfinds.org
December 20, 2025 at 6:06 PM
We've been hearing such unsubstantiated claims since the 1960s. We should instead focus on how the media reports each new "discovery by scientists" as if 5+ decades of refuted claims never happened. Even Charlie Brown recognized that Lucy had fooled him before.
www.madinamerica.com/2025/08/the-...
www.madinamerica.com/2025/08/the-...
IQ hereditarians are in shambles right now.
The mean IQ correlation of reared-apart fraternal twins (DZAs) does not differ significantly from that of identical twins reared apart (MZAs).
Conclusion: 0% IQ heritability (no genetic influences detected). jayjoseph22.substack.com/p/iq-heredit...
The mean IQ correlation of reared-apart fraternal twins (DZAs) does not differ significantly from that of identical twins reared apart (MZAs).
Conclusion: 0% IQ heritability (no genetic influences detected). jayjoseph22.substack.com/p/iq-heredit...
December 17, 2025 at 4:10 PM
IQ hereditarians are in shambles right now.
The mean IQ correlation of reared-apart fraternal twins (DZAs) does not differ significantly from that of identical twins reared apart (MZAs).
Conclusion: 0% IQ heritability (no genetic influences detected). jayjoseph22.substack.com/p/iq-heredit...
The mean IQ correlation of reared-apart fraternal twins (DZAs) does not differ significantly from that of identical twins reared apart (MZAs).
Conclusion: 0% IQ heritability (no genetic influences detected). jayjoseph22.substack.com/p/iq-heredit...
Interesting passage from a 1976 chapter by Minn. Study of Twins Reared Apart leader T. Bouchard. Here, Bouchard recognized that being raised in a “less than-favorable” environment – as opposed to a favorable one – could lower a person’s expected IQ score by 24 points! www.amazon.com/Human-behavi...
December 14, 2025 at 6:38 PM
Interesting passage from a 1976 chapter by Minn. Study of Twins Reared Apart leader T. Bouchard. Here, Bouchard recognized that being raised in a “less than-favorable” environment – as opposed to a favorable one – could lower a person’s expected IQ score by 24 points! www.amazon.com/Human-behavi...
Whether it was Arthur Jenson on a typewriter in 1970 or @cremieuxrecueil on a laptop in 2023, the claim that Cyril Burt's "twin data" are valid and that twins in the earlier studies were "reared apart" is a form of scientific deception.
See: www.madinamerica.com/2020/02/expl...
See: www.madinamerica.com/2020/02/expl...
December 14, 2025 at 6:26 PM
Whether it was Arthur Jenson on a typewriter in 1970 or @cremieuxrecueil on a laptop in 2023, the claim that Cyril Burt's "twin data" are valid and that twins in the earlier studies were "reared apart" is a form of scientific deception.
See: www.madinamerica.com/2020/02/expl...
See: www.madinamerica.com/2020/02/expl...
Reposted by Jay Joseph
As is typical with eugenicists, the founder of Herasight’s scholarship fails to meet reasonable standards of rigour for his discipline 👇 Academics REALLY should push back against eugenicists, not just ignore them, as philosopher Rob Wilson did in his responses to articles “defending eugenics” here
Like, “Defending eugenics” is an absolutely bonkers title for a paper and the author list is a mix of “people you’d totally expect to write this article” and “people who should know better”. Either way an actual scholar of eugenics took them to school philarchive.org/archive/WILE...
philarchive.org
December 14, 2025 at 12:11 PM
As is typical with eugenicists, the founder of Herasight’s scholarship fails to meet reasonable standards of rigour for his discipline 👇 Academics REALLY should push back against eugenicists, not just ignore them, as philosopher Rob Wilson did in his responses to articles “defending eugenics” here
Reposted by Jay Joseph
I wrote about the bizarre case of Herasight, the embryo selection company going all in on eugenics.
Embryo selection company Herasight goes all in on eugenics
...
open.substack.com
December 13, 2025 at 8:16 PM
I wrote about the bizarre case of Herasight, the embryo selection company going all in on eugenics.
Reposted by Jay Joseph
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December 13, 2025 at 3:51 PM
Become an MIA supporter! Get access to all science news, MIA report content and get free access to all MIA webinars. Subscribe for as little as $20 per year or $5 per month. buff.ly/J9VwQmP