Not long ago the HBD community was shocked to learn about a theory claiming that genetic IQ had dropped by about 15 points since the Victoria era due to a combination of dysgenics and mutation load. Some HBDers were extremely skeptical that such a large drop in IQ could have possibly occured in such a short span of time. Well one of the scientists behind that theory is now claiming there’s been a 30 point drop in just the last 200 years. Professor Bruce Charlton writes:
We currently believe that general intelligence has declined by approximately two standard deviations (which is approximately 30 IQ points) since 1800 – that is, over about 8 generations.
Such a decline is astonishing – at first sight. But its magnitude has been obscured by social and medical changes so that we underestimate intelligence in 1800 and over-estimate intelligence now.
A 30 point genetic drop in IQ would imply that that by the standards of people in 1800, people today are mentally retarded!!!
Such an extreme theory goes against everything I thought I knew about IQ and genetics, but I greatly admire these scientists for daring to challenge the conventional wisdom in such a radical way. It will be interesting to see if such a paridigm shifting idea can gain acceptance by other experts in the field.
Pumpkin Person 
I’m wondering if part of the reason why you’re so interested in this line of research is because it’s a taboo subject that touches upon a sensitive issue. I’m worried that this line of research over statistics will unfairly categorize a group of people in a negative way.
For example it’s easy to notice physical differences. The Dutch are over 6 feet tall. The Japanese are about 5 foot 7.5. These are only averages, and it would be unfair to call all Japanese people short when there are clearly some who have grown to be 6-foot-9 basketball players.
People can then look at historical events and make correlations with a belief in evolution. That somehow the Roman Empire, Renaissance, and Industrial Age came about because Caucasians are more “evolved and advanced” once migrations occurred out of Africa.
The left wing want us all to have equality to promote peace and harmony. I’m concerned that this type of rhetoric will strain race relations even further.
”The left wing want us all to have equality to promote peace and harmony”
The naive, smart (and not so smart) lefties because the jewish-white liberal elites seems to be very hypocrites about it.
First of all, is a 30 points IQ drop even possible from a evolutionary point of view? (I’m no expert on evolutionary biology) That’s like that the average height for men and women dropped 5 inches in 200 years. Does that seem plausible to you?
Secondly, I know most researchers claim that most of the Flynn effect gains are hollow as far as ‘g’, but wouldn’t that make the declines you speak of even more implausible?
If the Flynn effect is masking a huge dysgenic trend, it’s a much stronger effect then thought (& it’s already thought to be strong)
It’s impossible for genetic IQ to rise by 30 points in 200 years unless you have some extreme selection (i.e. everyone who’s not brilliant dies)
However these scientists argue that a 30 point IQ drop is much more plausible because instead of the trend being slowed by mutations (as happens in eugenics), dysgenics is accelerated by mutations
The analogy they use is something like, it takes all day to ski up a ski hill but only a minute to ski down
Analogously, it took 100,000 years or so for genetic IQ to increase by 30 points, but they argue it’s declined by 30 points in just 200 years, thanks to both dysgenics & the sudden explosion of mutations
Well, European countries were very eugenists till WW2, so eugenics have no effect ?!
A major point they make is high infant mortality used to weed out all the mutations, but because of advances in health care, clean drinking water, medicine, vaccines, etc, mutated babies that used to die are passing on their mutations & all the mutations are building up like compound interest doing irreparable genetic damage to our species, setting back evolution by tens of thousands of years in record time
”A 30 point genetic drop in IQ would imply that that by the standards of people in 1800, people today are mentally retarded!!!”
People who think like this
”America is great. Obamba is against neocons, blablabla”.
how old were you when you were aware of racial differences in IQ for the first time of your life ?
Me**
no pumpkin (but you can answer to this question too if you want.)
26, since ever. I like to observe people patterns.
2 possible interpretations of your answer:
-a)you were aware of racial difference in intelligence since your 26
-b)you have 26 and you were aware of racial difference intelligence since you was ejected from your mom’s vagina
Is impossible the second, only if i was a prodigious raciologist, i’m not. But, since my second childhood, when we start interact with people i observe differences AND i’m aware about it but without informations like ”iq differences”, intuitively. Why*
what is the “inome” category or may be is income ?
are you dislexyc ?
…could explain why you failed at school
So if we follow the reasoning of the 30 pts drop of IQ even when eugenics policies were in place, we should expect a 60(not an exact value, just to point out the hugeness of the figure) pts drop in the future 200 years if nothing is done ?
So the end of the humanity because of stupid people claiming that intelligence is in education ?
THIS THEORY DOESN’T FOLLOW OCCAM’S RAZOR, SHE IS VERY UNELEGANT.
http://sputniknews.com/military/20150628/1023948515.html
To be part of army you need have higher (((((((technical)))))) intelligence, above 105…..
And to be intelectually retard to
-attack people (people who you never know in your life) in other countries,
– don’t understand diplomacy,
– fight ”by your nation”, but not, because while you are killing yourself, few asshole people are cashing with your idiocy
or little sociopath because you ”born to kill” someone.
If genetic IQ have decreased by 2 SD , does it mean that size have decreased by 2 SD ? And if it is the case, what would be european male of the XIXth century average height with actual nutrition ?
No. Blacks have had enough food for about 100 years, so they would suffer the same drop for the last 100 years.
If genetic IQ have decreased by 2 SD , does it mean that size have decreased by 2 SD ? And if it is the case, what would be european male of the XIXth century average height with actual nutrition ?
Well they believe genetic IQ has dropped by 2 SD for 2 reasons:1) low IQ people having more kids, and 2) accumulation of mutations caused by decreased child mortality
Only argument 2 really applies to height, so if this theory is true, I would expect genetic height to have dropped by only 1 SD (not 2 SD like they claim for genetic IQ).
Since the standard deviation for adult male height is almost 3 inches, men 200 years ago should have been about 3 inches taller than today’s men, with today’s nutrition.
Well, I think it would more than 1 SD (but less than 2 SD) because argument 1 can apply a little given the fact that low IQ tend to be smaller.
Would be*
If this theory is true does it mean that the Black-White gap in QI was even larger in those times ?
Because European IQ is 30 pts lower because of increased of life condition, and African genetic IQ must have less decreased because their life condition were “good” for a less long time.
If this theory is true does it mean that the Black-White gap in QI was even larger in those times ?
Because European IQ is 30 pts lower because of increased of life condition, and African genetic IQ must have less decreased because their life condition were “good” for a less long time.
Well this is one of the challenges for this theory. According to Rushton & Jensen, the black-white IQ gap in the U.S. has been about 1 SD (or 1.5 SD) since the earliest days of mass IQ testing (WWI).
On the other hand Charles Murray claims the black IQ gap was 1.5 SD and gradually shrunk to 1 SD
Entropy is like gravity. Without a force in the opposite direction, the only motion will be down. Such is the case with IQ.
Thought experiment: Approximately 1/20 mice don’t have surviving children, so how come mice are not super-mice? Reason: That death rate is required to maintain mice at their current level, so great are the en-tropic forces.
So you agree there’s been a 30 point genetic IQ drop?
I agree it is very significant and large. 30 points? Who knows. Maybe its 10 points. But given human death rate was 1/2, and there was a significant correlation between IQ and death, the drop will be significant in Z-Score (e.g. it wont be anything near 0.1 points). If you knew the correlation, you could calculate out the drop. Even a correlation of 0.1 should get you to a large number I think.
Hbd say less than 3 points in iq and violence will have a huge increase…
30 ”points”???
apocalipse.
Nope. This numbers are just figuratives.
They are compensated by the 30 pts gain from flynn effect.
seriously, you are dumb.
Flynn effect is a joke, like you.
So the augmentation of cognitive capacities because of better nutrition is a joke ?
Pumpkin, you should make an article on the stupidity of this living organism because I doubt if it’s statistically possible that something as stupid can belong to human species.
”So the augmentation of cognitive capacities because of better nutrition is a joke ?”
RETARD,
your pueril manipulation here don’t have any effect on me okay*
Nope, i don’t talk about better nutrition but iq scores discrepancies found by Flynn, retard.
Flynn also agreed with me when he concluded that iq doesn’t measure ”intelligence” or not at all.
SQUAAH SQUAAH !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
These numbers mean nothing or almost nothing in the real world.
IQ tests are not standardized, especially those of the early twentieth century (if we compare apples with pears)
Samples are demographically varied,
The way that psychologists standardize their testing,
If test scores increased 30 and 30 decreased, so there was no increase or decrease,
But demographically speaking,
the elites have a very low impact on the demographics of any nation,
much of the non-aristocratic elites came from the middle class,
only the middle class reduce their fertility, but that did not happen until the oil crisis, in most rich countries,
etc etc etc
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