Lead was a much bigger problem in the 1970 when it was in road vehicles fuels. But now its only use in some small plane fuels. There is also much less use of lead paint and lead in water pipe systems.
N.B. : Study in that article is about decline from 2010 until today in 15-year-olds.
In my personal observations less intelligent people tend to have more children.
Therefore population IQ drifts towards bottom.
I suspect that’s because they do not fully understand all their future struggles and fates of their children in the world, fucked up by climate crisis and resource scarcity.
(IE the theory it pushed was in short, smart people do family planning, try to wait for everything to be perfect… and forget to get around to having kids).
Meanwhile on the less intelligent spectrum. Shit I’m pregnant again!!!.. Oh and I got the girl in the trailer next door pregnant.
Or for a real world example… look at Lauren Boebert, the 35 year old grandmother in congress.
Yes absolutely (and i was afraid to say it out loud).
But now, we have also to explain why it did not so much apply in the past millennias … or tens of past millenias. (again, i am afraid to say it … don’t want a shitstorm)
The massive lowering of the bar of “good enough to stay alive”. Life expectancy was consistantly in the 30s up until the 1870s. Simply having kids was life threatening… doing so while malnourished even more so.
Natural selection favors traits that increase the odds of having offspring, as well as those that avoid death before having offspring. Avoiding death is a lot easier than it used to be.
Causes :
long covid ?
micro plastics ?
screen time ?
sedentarism ?
fast food ?
lack of sleep ?
other ?
Don’t forget lead.
Lead was a much bigger problem in the 1970 when it was in road vehicles fuels. But now its only use in some small plane fuels. There is also much less use of lead paint and lead in water pipe systems.
N.B. : Study in that article is about decline from 2010 until today in 15-year-olds.
In my personal observations less intelligent people tend to have more children.
Therefore population IQ drifts towards bottom.
I suspect that’s because they do not fully understand all their future struggles and fates of their children in the world, fucked up by climate crisis and resource scarcity.
This is the plot to a fictional movie. Intelligence is a factor of many things, and most of those factors are not genetic.
Your observation seems close to the opinions of old school eugenicists. “The wrong people are having children”.
idiocracy intro?
(IE the theory it pushed was in short, smart people do family planning, try to wait for everything to be perfect… and forget to get around to having kids).
Meanwhile on the less intelligent spectrum. Shit I’m pregnant again!!!.. Oh and I got the girl in the trailer next door pregnant.
Or for a real world example… look at Lauren Boebert, the 35 year old grandmother in congress.
Yes absolutely (and i was afraid to say it out loud).
But now, we have also to explain why it did not so much apply in the past millennias … or tens of past millenias. (again, i am afraid to say it … don’t want a shitstorm)
The massive lowering of the bar of “good enough to stay alive”. Life expectancy was consistantly in the 30s up until the 1870s. Simply having kids was life threatening… doing so while malnourished even more so.
Natural selection favors traits that increase the odds of having offspring, as well as those that avoid death before having offspring. Avoiding death is a lot easier than it used to be.