Ashkenazi VS Sephardic IQ gap

[mieret]

http://www.theapricity.com/forum/arc.../t-100766.html
I was reading this old thread today, raising the question about why ashkenazi jews are so notoriously smart while the other branches are far behind, and I thought it is a pity that there weren't any serious answers(just the typical bringing it all down to what I call the "north over south; both cromagnoid&neanderthal admixture; clear of negroid influence, blabla.." wild card)

While on the other hand, nobody brought up this article which I find way more scientific than all the chit-chat, and which makes very interesting points
More or less, it proposes that Ashkenazi jews in particular endured some very special circumstances for a long time(1000 years) which resulted in a natural selection of the more IQ favorable variants. It does so after analyzing a group of conditions that are known to be more prevalent in this group, which indicate that this group has undergone a strong genetic selection mechanism

https://web.archive.org/web/20130911...kiq.webpub.pdf
Here is the summary:
Summary. This paper elaborates the hypothesis that the unique demography
and sociology of Ashkenazim in medieval Europe selected for intelligence.
Ashkenazi literacy, economic specialization, and closure to inward gene flow
led to a social environment in which there was high fitness payoff to
intelligence, specifically verbal and mathematical intelligence but not spatial
ability. As with any regime of strong directional selection on a quantitative
trait, genetic variants that were otherwise fitness reducing rose in frequency.
In particular we propose that the well-known clusters of Ashkenazi genetic
diseases, the sphingolipid cluster and the DNA repair cluster in particular,
increase intelligence in heterozygotes. Other Ashkenazi disorders are known
to increase intelligence. Although these disorders have been attributed to a
bottleneck in Ashkenazi history and consequent genetic drift, there is no
evidence of any bottleneck. Gene frequencies at a large number of autosomal
loci show that if there was a bottleneck then subsequent gene flow from
Europeans must have been very large, obliterating the effects of any
bottleneck. The clustering of the disorders in only a few pathways and the
presence at elevated frequency of more than one deleterious allele at many of
them could not have been produced by drift. Instead these are signatures of
strong and recent natural selection



I don't know if this is the best section for this topic, correct me if it isn't

[Cristiano viejo]

Until recently, Sephardis looked down Ashkenazis intellectually speaking.

[Vascontelo]

Of course not. It's just a perception because askenazies are, nowdays, a very strong group. And sephardies are practically a extinct group. In the past, when they were living in Spain i'm pretty sure they were a very smart group and they proved it too in netherlands. But now, there is too few sephardics and mostly of them are mixing with askenazis.

[mieret]

Of course not. It's just a perception because askenazies are, nowdays, a very strong group. And sephardies are practically a extinct group. In the past, when they were living in Spain i'm pretty sure they were a very smart group and they proved it too in netherlands. But now, there is too few sephardics and mostly of them are mixing with askenazis.

Yes, that makes a lot of sense too. I think that one of the problems when they study sephardies nowaday is that what they include in this group now have little to do with the original Iberian peninsula sephardies of the medieval ages; which are especially difficult to trace since they were kicked out in the XV century

[Cristiano viejo]

Yes, that makes a lot of sense too. I think that one of the problems when they study sephardies nowaday is that what they include in this group now have little to do with the original Iberian peninsula sephardies of the medieval ages; which are especially difficult to trace since they were kicked out in the XV century

Not too expert in Sephardi people but according the Spanish media there are tons of them living in North Africa, Turkey, Israel and USA.
I mean direct descendants of those who were expelled of Spain.

[Rethel]

Explanation is simply: AJ have more IE admix. Thats all.

[Wadaad]

Sephardis saw the world, traded in maritime ventures and had agents in Amsterdam, Lisbon, the New World, Istanbul, etc. by the 1600s.

Ashkenazis were seen as ghetto-stuck hicks. Only Zionism (which was a movement that developed out of these e.european ghettoes) and the emancipation of Ashkenazi by the czar of Russia so they could migrate to Germany and France in the 1800s, improved things for ashkenazi...now they are trying to redress history and make those centuries of Ghetto-life some kind of IQ incubator/fuel...just lol.

[Insuperable]

Explanation is simply: AJ have more IE admix. Thats all.

And R1ethel being the prime example of IE intelligence.

[Longbowman]

Western Sephardim (Marranos), and we are indeed very admixed, were the dominant power for a few centuries. Now it's their turn.

Eastern and North African Sephardim are nowhere near extinct, and there are many 'pure' examples, but they never achieved our wealth and power, although the ones in Smyrna/Constantinople did achieve much.

Explanation is simply: AJ have more IE admix. Thats all.

WHG:

Sephardim: 16%. IQ: 100
Ashkenazim: 19%. IQ: 115
Smolensk: 48%. IQ: 97
Beijing: 0%. IQ: 112

And R1 is less common amongst them, too...

[Petalpusher]

Western Sephardim (Marranos), and we are indeed very admixed, were the dominant power for a few centuries. Now it's their turn.

Eastern and North African Sephardim are nowhere near extinct, and there are many 'pure' examples, but they never achieved our wealth and power, although the ones in Smyrna/Constantinople did achieve much.



WHG:

Sephardim: 16%. IQ: 100
Ashkenazim: 19%. IQ: 115
Smolensk: 48%. IQ: 97
Beijing: 0%. IQ: 112

And R1 is less common amongst them, too...

You know better IE admix doesn't equate WHG, although im sure it's just to piss off Rethel (which i always support of course)