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Roman Empire's use of lead lowered IQ levels across Europe, study finds

theguardian.com

101–110 of 176 posts

Re: Roman Empire's use of lead lowered IQ levels across Europe, study finds

#101
post #13

Earlier quoted context omitted.

Perhaps not with respect to IQ but there’s a chance that future historians might correlate the use of plastics with increased rates of infertility.

Perhaps there is a link between plastics and ADHD [1]. [1] https://pmc.ncbi.nlm.nih.gov/articles/PMC8910189/

I find it interesting that the article you linked didn't mention the heritability of ADHD. In around 3/4ths[0] of cases ADHD is caused by genetics, which leaves plenty of space for other causes.

[0] https://www.nature.com/articles/s41380-018-0070-0

Re: Roman Empire's use of lead lowered IQ levels across Europe, study finds

#102
Is IQ really that important?

I mean, if your goal is to get from point A to point B, having a fast car just means you go there faster.

I'm thinking of IQ in a similar way, as in - high IQ = faster car. But at the end of the day, it's still the same, isn't it? Please correct me if I'm wrong.

Re: Roman Empire's use of lead lowered IQ levels across Europe, study finds

#103

Is IQ really that important? I mean, if your goal is to get from point A to point B, having a fast car just means you go there faster. I'm thinking of IQ in a similar way, as in - high IQ = faster car. But at the end of the day, it's still the same, isn't it? Please correct me if I'm wrong.

Yes it matters. Faster car can run more miles in a day. More IQ can do more work.

Re: Roman Empire's use of lead lowered IQ levels across Europe, study finds

#104

Is IQ really that important? I mean, if your goal is to get from point A to point B, having a fast car just means you go there faster. I'm thinking of IQ in a similar way, as in - high IQ = faster car. But at the end of the day, it's still the same, isn't it? Please correct me if I'm wrong.

If you have IQ 50, it's not just that you do things slower than other people, you can't do many things at all.

Re: Roman Empire's use of lead lowered IQ levels across Europe, study finds

#106

I wonder if future historians will see a similar drop after widespread use of plastic

https://senecaeffect.substack.com/p/are-plastics-killing-us

Oh gosh... "insidious castration of all men" and "blurred gender roles". Really? They have been blurry for all of homo sapiens existence, just think of the matriarchal societies that still exist today[0]. Gender dysphoria has been documented from individuals[1] for a long time, societies accepted a third gender since ancient time and even in the USA, the Cercle Hermaphroditos[2] was quite early to the party, being founded in 1895 (yes 130 years ago).

I'm confident that plastic will go the way trees did: Unbothered for a long time until bacteria figured dead wood is just another food and put a stop to trees being fossilized as coal.

Stop plastics, it's a good idea to do so for many reasons, but there's no need to drag gender roles and those stupid good old times into it. I much prefer spending time with my kid instead of slaving away 9-5 six days a week.

[0] https://www.townandcountrymag.com/society/tradition/g2856528... [1] https://en.wikipedia.org/wiki/Kalonymus_ben_Kalonymus [2] https://en.wikipedia.org/wiki/Cercle_Hermaphroditos

Re: Roman Empire's use of lead lowered IQ levels across Europe, study finds

#107

Is IQ really that important? I mean, if your goal is to get from point A to point B, having a fast car just means you go there faster. I'm thinking of IQ in a similar way, as in - high IQ = faster car. But at the end of the day, it's still the same, isn't it? Please correct me if I'm wrong.

Yes it matters. Faster car can run more miles in a day. More IQ can do more work.

Unfortunately for that we have computers so we don't need high IQ to do more work like calculations but higher quality work (which also depends on what kind of work you're doing) and that is oftentimes not primarily related to high IQ (think of creative work)

Re: Roman Empire's use of lead lowered IQ levels across Europe, study finds

#109

Is IQ really that important? I mean, if your goal is to get from point A to point B, having a fast car just means you go there faster. I'm thinking of IQ in a similar way, as in - high IQ = faster car. But at the end of the day, it's still the same, isn't it? Please correct me if I'm wrong.

If you have IQ 50, it's not just that you do things slower than other people, you can't do many things at all.

Even worse: if you have an IQ of 100, there are lots of things you just can't do. And if you have an IQ of 120? Still lots of things you just can't do. Same with 140. And it doesn't even stop there.

Re: Roman Empire's use of lead lowered IQ levels across Europe, study finds

#110

Is a 2-3 point IQ drop really that terrible? If we all suddenly went from 100% to 97% brain efficiency we wouldn't even notice. For example a bad night of sleep is surely worth 10 times as much.

Or even measurable reliably? What is the typical error bar for an IQ test? Also is only kind of estimation based on what is known today about lead...
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