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nhchris commented on 4.5%, and the Demographics of American Murder   datahazard.substack.com/p... · Posted by u/nhchris
Overtonwindow · 3 years ago
How can we further remove biased from this study?

I agree this looks impressive i the level of research and detail, but I strongly caution the community not to jump to conclusions.

Be mindful of where the data comes from. Police and prosecutors can and do make mistakes, inadvertently or sometimes prejudiciously.

I've heard this statistic most of my life that Black people commit a significant amount of crime, yet being such a small percentage of the population. I just think it grossly over simplifies everything and its unfair.

I'm not sure how to account for that bias, I don't think we can draw conclusions until we can rectify some of that

nhchris · 3 years ago
> Police and prosecutors can and do make mistakes, inadvertently or sometimes prejudiciously.

That's one of the reasons murder is used. Hard to fudge the statistics on it, immune to overpolicing, most of it is intra-racial, and it's hard to misidentify a perpetrator so bad that they go from white to black.

But for non-murder, there is the National Crime Victimization Survey, that does not involve the police, and acts as a check on their data: https://en.wikipedia.org/wiki/National_Crime_Victimization_S...

nhchris commented on 4.5%, and the Demographics of American Murder   datahazard.substack.com/p... · Posted by u/nhchris
rhaway84773 · 3 years ago
I’m not sure if this is sarcastic, but yeah, gun control has worked so well for the UK that what they are worrying about are the 250 or so people killed a year by knives and other sharp objects, like broken bottles.

Adjusted to the U.S. population that’s about 1500 deaths per year as opposed to around the 50,000 gun deaths the US sees in a year.

nhchris · 3 years ago
US homicide rate: 6.5, Black population: 12.1%, homicide rate/Black %: 0.54

UK homicide rate: 1.1, Black population: 3.15%, homicide rate/Black %: 0.35 (0.65x that of the US)

So gun control seems to have helped, but not as much as 1500 vs 50,000. It would be interesting to see the homicide rate for UK Blacks specifically, but I could only find data about homicide victims by race, not perpetrators. Sources:

https://en.wikipedia.org/wiki/List_of_countries_by_intention...

https://en.wikipedia.org/wiki/Demography_of_the_United_Kingd...

https://en.wikipedia.org/wiki/Demographics_of_the_United_Sta...

nhchris commented on IQ scores in the US have fallen for the first time in decades   nypost.com/2023/03/09/stu... · Posted by u/xqcgrek2
lostlogin · 3 years ago
How would that work? When scores were good it definitely wasn’t immigrants but now it’s falling it definitely is?

For what it’s worth, here is a graph of immigrant population over time.

https://www.pewresearch.org/fact-tank/2020/08/20/key-finding...

nhchris · 3 years ago
Are all immigrant populations interchangeable?
nhchris commented on IQ scores in the US have fallen for the first time in decades   nypost.com/2023/03/09/stu... · Posted by u/xqcgrek2
zem · 3 years ago
what? did you even read the article?

as for the twin experiment, he's not talking about heredity of iq, he's talking about heredity of perceived/expressed iq. there's an important difference that gets lost in the noise.

nhchris · 3 years ago
> did you even read the article?

I did. It's using a lot of words to obfuscate its central thesis: That even if you select against a trait, that trait won't diminish. It may as well be arguing that antibiotic resistance cannot develop, or that corn can't be selectively bred to increase yield.

It's sad that even 163 years after On the Origin of Species, people are still trying to deny it.

nhchris commented on IQ scores in the US have fallen for the first time in decades   nypost.com/2023/03/09/stu... · Posted by u/xqcgrek2
zem · 3 years ago
There are no grounds to argue that there are distinct subpopulations of people with different potentials for intelligence. Genes flow fluidly — if you sneer at the underclass and think your line is superior, I suspect you won't have to go back very many generations to find your stock comes out of that same seething mob. Do you have any Irish, or Jewish, or Italian, or Native American, or Asian, or whatever (literally—it's hard to find any ethnic origin that wasn't despised at some time) in your ancestry? Go back a hundred years or so, and your great- or great-great-grandparents were regarded as apes or subhumans or mentally deficient lackeys suitable only for menial labor.

Are you staring aghast at the latest cluster of immigrants in this country, are you fretting that they're breeding like rabbits? That generation of children will be the people your kids grow up with, go to school with, date, and marry. It may take a while, but eventually, your line will merge with theirs. Presuming you propagate at all, your genes are destined to disperse into that great living pool of humanity. Get used to it.

Furthermore, intelligence is an incredibly plastic property of the brain. You can nurture it or you can squelch it — the marching morons will birth children with as much potential as a pair of science-fiction geeks, and all that will matter is how well that mind is encouraged to grow. Even a few centuries is not enough to breed stupidity into a natural population of humans — that brain power may lay fallow and undernourished, but there isn't enough time nor enough pressure to make substantial changes in the overall genetics of the brain.

-- https://scienceblogs.com/pharyngula/2007/05/08/there-are-no-...

nhchris · 3 years ago
Early twin studies of adult individuals have found a heritability of IQ between 57% and 73%, with some recent studies showing heritability for IQ as high as 80% - https://en.wikipedia.org/wiki/Heritability_of_IQ

> Are you staring aghast at the latest cluster of immigrants in this country, are you fretting that they're breeding like rabbits? That generation of children will be the people your kids grow up with, go to school with, date, and marry. It may take a while, but eventually, your line will merge with theirs.

Please don't spread the great replacement conspiracy theory.

> There are no grounds to argue that there are distinct subpopulations of people with different potentials for intelligence. Genes flow fluidly

I don't see why we need to talk about "distinct subpopulations" at all, when individuals suffice. Besides, if you think "gene flow" means intelligence is immune to evolution, doesn't that apply to every other trait as well? What you're arguing is that evolution doesn't happen.

nhchris commented on IQ scores in the US have fallen for the first time in decades   nypost.com/2023/03/09/stu... · Posted by u/xqcgrek2
rcme · 3 years ago
I disagree that you can't expect it to increase forever (it's like saying you can't expect evolution to go on forever), but why would you expect IQ to decrease rather than plateau?
nhchris · 3 years ago
A movie was filmed to answer your question: https://en.wikipedia.org/wiki/Idiocracy

A comedy, but based in fact - e.g. educational attainment is inversely correlated with fertility. For a less individual view, you can visit Wikipedia's list of countries by fertility rate, and sort them by said rate.

u/nhchris

KarmaCake day1964December 1, 2021View Original