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Bill Sloman
Guest
On Saturday, July 27, 2019 at 5:28:52 PM UTC+10, Clifford Heath wrote:
I don't think that you have thought this through. If there isn't any selection going on, shuffling the genes isn't going to make any difference to the population.
Smarter people are better placed to take care of their kids, so there's likely to be some positive selection there.
Smarter people may get un-intentionally pregnant less often, which would decrease their representation in the next generation, but dumber people are less attractive marriage partners, and don't look after their kids as well which probably leads them to be under-represented to a greater extent.
There are ways of working out which bits of the genome are subject to selective pressure - there's less variability around favoured genes - and while the most vigorous selection that is visible is for genes that favour resistance to selective diseases, the Finnish study I referred to - a reference which you have snipped without marking the snip - did talk about genes associated with social virtues.
Making non-evidence-based assertions isn't a social virtue. Backing them up by text-chopping, even less so.
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Bill Sloman, Sydney
On 27/7/19 1:12 pm, Bill Sloman wrote:
On Saturday, July 27, 2019 at 9:30:01 AM UTC+10, Clifford Heath wrote:
On 27/7/19 1:11 am, George Herold wrote:
On Thursday, July 25, 2019 at 7:39:25 PM UTC-4, Clifford Heath wrote:
It's not clear to me that civilisation advantages intelligence,
Civilizations, don't just need manual labors. They need people
for all types of jobs that need 'smarts'...
Now I've got (on average) some smarter, more successful people living
together in cities. What happens next is they have kids. And smart
parents have smart kids.. (IQ or whatever you want to call it is
~50% heritable.)
That doesn't create a gradient. Smart people might have smart kids, but
not (on average) smarter kids.
Actually, they do, but there is a regression to the mean, and a lot of variability between kids even when they have both parents in common.
No, I mean population average. Two smart people might have a smarter
kid, but if each bred with an average person, you're likely to get more
IQ points overall, if you see what I mean. So it doesn't move the
population average. What could do that is if the smarter kid is more
successful in breeding, but that doesn't seem likely. Rather the
opposite in fact.
I don't think that you have thought this through. If there isn't any selection going on, shuffling the genes isn't going to make any difference to the population.
Smarter people are better placed to take care of their kids, so there's likely to be some positive selection there.
Smarter people may get un-intentionally pregnant less often, which would decrease their representation in the next generation, but dumber people are less attractive marriage partners, and don't look after their kids as well which probably leads them to be under-represented to a greater extent.
There are ways of working out which bits of the genome are subject to selective pressure - there's less variability around favoured genes - and while the most vigorous selection that is visible is for genes that favour resistance to selective diseases, the Finnish study I referred to - a reference which you have snipped without marking the snip - did talk about genes associated with social virtues.
Making non-evidence-based assertions isn't a social virtue. Backing them up by text-chopping, even less so.
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Bill Sloman, Sydney