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Monthly Archives: July 2025

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Read more about the article Proper embryo selection just landed

Proper embryo selection just landed

  • Post author:Emil O. W. Kirkegaard
  • Post published:31. July 2025
  • Post category:intelligence / IQ / cognitive ability/Medicine/Psychiatry/Reproductive genetics

Today is an exciting day. First, the HHS announced a more open data policy (in the direction of my suggestions), and second and more importantly, a new company just went…

Continue ReadingProper embryo selection just landed
Read more about the article Garett Jones finishes his trilogy

Garett Jones finishes his trilogy

  • Post author:Emil O. W. Kirkegaard
  • Post published:25. July 2025
  • Post category:Book review/Economics/Immigration

In the last 10 years, economist Garett Jones has been writing a series of books, a trilogy to be exact: Jones says in the post-script: THIS IS THE FINAL BOOK…

Continue ReadingGarett Jones finishes his trilogy
Read more about the article Video: Davide Piffer and I talk about ancient genomics, polygenic scores and history

Video: Davide Piffer and I talk about ancient genomics, polygenic scores and history

  • Post author:Emil O. W. Kirkegaard
  • Post published:23. July 2025
  • Post category:Genomics/intelligence / IQ / cognitive ability/Interview

The first of many videos for paid subscribers (on Substack). Actually, this first one will be free, and some later ones may also be free (which I will also post…

Continue ReadingVideo: Davide Piffer and I talk about ancient genomics, polygenic scores and history
Read more about the article The benefits of monarchy, maybe also for Jamaica

The benefits of monarchy, maybe also for Jamaica

  • Post author:Emil O. W. Kirkegaard
  • Post published:21. July 2025
  • Post category:Government form/History

I was busy attending a wedding this weekend, so there were no posts. In the mean time, Lipton Matthews (X profile, Substack, Aporia articles) asked if he could write a…

Continue ReadingThe benefits of monarchy, maybe also for Jamaica
Read more about the article IQ is the most predictive variable in social science*

IQ is the most predictive variable in social science*

  • Post author:Emil O. W. Kirkegaard
  • Post published:15. July 2025
  • Post category:Uncategorized

You will often find intelligence researchers and enjoyers make claims like the following: g can be said to be the mostpowerful single predictor of overall job performance. First, no other…

Continue ReadingIQ is the most predictive variable in social science*

What doesn’t explain the post-COVID fertility decline?

  • Post author:Emil O. W. Kirkegaard
  • Post published:13. July 2025
  • Post category:Demographics/Medicine

I've been writing about fertility for a while. Of recent interest is the COVID or post-COVID fertility decline. Birth Gauge compiles the most up to date TFR (total fertility rate)…

Continue ReadingWhat doesn’t explain the post-COVID fertility decline?
Read more about the article Odd sibling RDR results: is the problem measurement error in IBD?

Odd sibling RDR results: is the problem measurement error in IBD?

  • Post author:Emil O. W. Kirkegaard
  • Post published:12. July 2025
  • Post category:Genomics/intelligence / IQ / cognitive ability

You've probably seen the recent Scott Alexander discussion about heritability, with comments from key players and commentators in the field, but if not: Scott Alexander: Missing Heritability: Much More Than…

Continue ReadingOdd sibling RDR results: is the problem measurement error in IBD?
Read more about the article People overestimate the size of every minority group

People overestimate the size of every minority group

  • Post author:Emil O. W. Kirkegaard
  • Post published:9. July 2025
  • Post category:Psychology

Lot of studies go like this: Now, you can quibble that they used poor estimates of immigrant% that only counted first generation, or those with only foreign citizenship, or in…

Continue ReadingPeople overestimate the size of every minority group
Read more about the article Female education and fertility rates

Female education and fertility rates

  • Post author:Emil O. W. Kirkegaard
  • Post published:7. July 2025
  • Post category:Demographics/Education/Forecasting

This figure has been floating around on X the last few days: As in my own example, the copycat gained more attention than the earlier post (July 3rd 1.2M views,…

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Read more about the article Intelligence (journal) is dead, long live Intelligence (&CA) journal

Intelligence (journal) is dead, long live Intelligence (&CA) journal

  • Post author:Emil O. W. Kirkegaard
  • Post published:5. July 2025
  • Post category:intelligence / IQ / cognitive ability/Metascience

As Noah Carl covered at Aporia in December 2024, the old Intelligence journal experienced a hostile takeover by Elsevier and their woke academic friends. As a result, most of the…

Continue ReadingIntelligence (journal) is dead, long live Intelligence (&CA) journal
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