This weekly roundup thread is intended for all culture war posts. 'Culture war' is vaguely defined, but it basically means controversial issues that fall along set tribal lines. Arguments over culture war issues generate a lot of heat and little light, and few deeply entrenched people ever change their minds. This thread is for voicing opinions and analyzing the state of the discussion while trying to optimize for light over heat.
Optimistically, we think that engaging with people you disagree with is worth your time, and so is being nice! Pessimistically, there are many dynamics that can lead discussions on Culture War topics to become unproductive. There's a human tendency to divide along tribal lines, praising your ingroup and vilifying your outgroup - and if you think you find it easy to criticize your ingroup, then it may be that your outgroup is not who you think it is. Extremists with opposing positions can feed off each other, highlighting each other's worst points to justify their own angry rhetoric, which becomes in turn a new example of bad behavior for the other side to highlight.
We would like to avoid these negative dynamics. Accordingly, we ask that you do not use this thread for waging the Culture War. Examples of waging the Culture War:
-
Shaming.
-
Attempting to 'build consensus' or enforce ideological conformity.
-
Making sweeping generalizations to vilify a group you dislike.
-
Recruiting for a cause.
-
Posting links that could be summarized as 'Boo outgroup!' Basically, if your content is 'Can you believe what Those People did this week?' then you should either refrain from posting, or do some very patient work to contextualize and/or steel-man the relevant viewpoint.
In general, you should argue to understand, not to win. This thread is not territory to be claimed by one group or another; indeed, the aim is to have many different viewpoints represented here. Thus, we also ask that you follow some guidelines:
-
Speak plainly. Avoid sarcasm and mockery. When disagreeing with someone, state your objections explicitly.
-
Be as precise and charitable as you can. Don't paraphrase unflatteringly.
-
Don't imply that someone said something they did not say, even if you think it follows from what they said.
-
Write like everyone is reading and you want them to be included in the discussion.
On an ad hoc basis, the mods will try to compile a list of the best posts/comments from the previous week, posted in Quality Contribution threads and archived at /r/TheThread. You may nominate a comment for this list by clicking on 'report' at the bottom of the post and typing 'Actually a quality contribution' as the report reason.
Jump in the discussion.
No email address required.
Notes -
If HBD were true, there would be no Flynn Effect - there's no way the genes of the Western nations have changed that much so quickly.
I would even say that the changes in which societies are hovels and which are not, such as the shift in the center of civilization from the Muslim world to Europe over the past several centuries, are too fast to explain with HBD.
I'm too lazy to look up the actual numbers, but if I remember correctly, if we accept that the IQ numbers for Africa are the result of a culturally-unbiased assessment of intelligence, then Africa would be a society of actually literally retarded people, which it is not.
HBD people often claim that the flynn effect happened and was very strong, and indeed at least half if not more of the africa / US IQ difference today are environmental - but things like the internet, mass education, libraries, and cheap goods and modern life generally smooths out environmental differences like access to education and supplementation and industrial food and malaria, so the remaining differences in the US are mostly genetic. Like, if there's a lot of environmental and genetic variation, and then we get rally good at dealing with the environmental variation ...
However many of them also claim Africa is a society of actually retarded and functionally disabled people who are 70IQ, and, yeah, it isn't. But HBD people being puerile, bigoted racists doesn't make HBD false, lots of correct things were historically believed by disgusting bigots first.
More options
Context Copy link
Certain genetic changes can occur quickly, suppose you have many inbred groups, and due to something (easier transportation, cultural bans on incest) it can change in 1 generation. Some countries are still noticeably inbred.
To add to others said, reduced pathogen load compared to 100 years ago (due to vaccines and hygiene) also probably improved IQs too.
The most common estimate held in HBD is that black Africans IQ would improve by 10-15 points if living standards improved to that 1st world has.
In what sense?
They live lives, make social bonds, love, children, you don't need high intelligence for that.
More options
Context Copy link
Do you feel changes in diet couldn't explain much of the difference? To pick just one example, we know iodine deficiency during pregnancy results in adult IQ for the child almost a standard deviation lower than pregnancy without iodine deficiency.
I find it easy to tell a story where elites have always tended to have access to varied and nutritious food, and thus be close to their maximum genetic potential, while peasants would frequently have vitamin deficiencies and have their height and IQ stunted. Then industrialization and the scientific revolution happen, humans figure out most of the food problem and figure out how to address the most important vitamin deficiencies in the population, and you see the Flynn Effect for several generations, which eventually tops out at the point where people's natural genetic potential lies.
If this explanation is true, it would be very easy to try to hypothesize something like: black people tend to not absorb certain vitamins as well as white people, so many of them might have deficiencies that go unnoticed that lead to lower IQ. I tend to recall looking at data for iodine levels in black mothers in the modern US, and they have the lowest levels of any ethnic group - though still above what is considered adequate for the IQ effects. It doesn't require that many epicycles to propose the hypothesis that what is adequate iodine for other groups might not be adequte iodine for black mothers - or that the scientists got the initial number wrong, and more iodine is needed to make up for the deficit.
And even without such speculation, it would be very simple to speculate about vitamin deficiencies in general in the US black population. This would allow for a "cultural" explanation for low black IQ that has a "biological" solution (force black people to eat different food/offer some product that has bioavailable versions of the missing vitamins.)
even if this was true, random drift would sort things. But give 'joe the plumber' person a lot of iodine and he's not gonna become einstein. There certainly were a lot of people in the past who were very smart but, by chance, were peasants. But that doesn't mean the elite weren't very sorted for genetics of various sorts!
More options
Context Copy link
The explanation might not be iodine. Black people have high rates of vitamin D deficiency, for example.
More options
Context Copy link
More options
Context Copy link
This is way bigger https://en.wikipedia.org/wiki/Bloom's_2_sigma_problem
More options
Context Copy link
This is such an annoying and ignorant argument. Clinical retardation is not just the condition of having low IQ.
More options
Context Copy link
HBD is not the claim that environment has no effect on IQ. A 50% environment, 50% genetics model to explain IQ variation is a pro HBD position
That's a good point I hadn't thought and I take back the first paragraph I wrote.
More options
Context Copy link
No it isn't. HBD as typically sold by its advocates requires genetics to be the dominant factor.
If you read a review article on behavioral genetics, i'd recommend this, iirc one of the things it initially emphasizes is that heritability is entirely a contextual thing. The heritability of a trait just tries to measure the extent that it, in a specific population under the myriad conditions and complex causation within it, a trait is caused by genes, in the sense that individuals with shared genes are, ceteris paribus, all else equal, more likely to share the trait. But this could entirely depend on environment - 'arm count' is much less heritable in an environment where people get their arms cut off at random and .1% of the population has a gene that sometimes causes arm malformation, vs an environment where nobodys arms get cut off and 50% of the population has a gene that reliably causes arms to not develop in utero. Despite the genes involved being the same!
Similarly, the HBD argument is - in the past, environment was dominant, and IQ had a much lower "heritability" if one could measure it - malaria? mauled by tiger? intestinal parasites? bad weather causes crops to fail? All random factors lowering IQ. Sure, a smarter person can avoid those a bit better, but not enough. But now modern society is very good at eliminating all of those - industrial food production, modern medicine, society, hygiene, education, travel, internet - and most of the variation left is genetic. HBD generally claims that within america, genetics is dominant - but not for instance between africa and america, or historical america and america.
More options
Context Copy link
In The Bell Curve, which I think can safely be called one of the seminal works in HBD discourse, Charles Murray states that evidence shows intelligence is between 40-80% heritable, and he puts his personal estimation in the middle at 60%. HBD as usually presented does not require that heritability be the dominant factor in determining intelligence, just a major component. If it's 40% heritable, that still has significant explanatory power.
More options
Context Copy link
That's the motte the bailey is when the same poster comes back 20 minutes later askings stupid questions like; If HBD is false what were Africa and Latin America were doing while the whites and Asians were duking it out for world supremacy?
You're the one who is engaging in strategic equivocation here, and being a veteran of the old atheism wars myself I see little to be gained by getting drawn into a Gish gallop with you.
More options
Context Copy link
More options
Context Copy link
More options
Context Copy link
More options
Context Copy link
More options
Context Copy link