You mean other than being completely factually wrong?
Brain size hasn’t been historically limited by the size of the birth canal, it doesn’t work like that, most growth takes place after birth. The fact that some children develop faster in the womb and require a c-section doesn’t make it true either.
The context is that he’s replying to a known pusher of eugenics. It’s not completely apparent in the post Elon replied to, but if you see enough of that user’s posts it becomes apparent.
edit: it’s also worth mentioning that sometimes a larger child is simply due to genetics from one parent. I know many very tall, large people whose mothers are very tiny, petite people. It could be considered a miracle when the birth happens naturally in those cases, but doesn’t have anything to do with the child having a larger brain. They’re just generally relatively larger than their mother.
No one said brain size doesn’t mean anything, although there is no documented correlation between brain size and intelligence, and since we don’t use most of our brains anyway, more volume mostly equals more unused volume.
What was said is that historically brain size wasn’t determined by the size of the birth canal, because most growth happens after birth anyway, and that’s the main functional reason for the skull to still be soft and need more protection than later. Else we would come out with fully formed brains and fully formed, hardened skulls.
Which should be obvious to you if you compare the size of any infant’s head with any adult’s head.
And why are you so sensitive about being asked what’s wrong with it other than it being completely factually wrong?
Your add-on breakdown wasn’t necessary, you’re not informing me of anything, I already provided the relevant info in other replies.
You didn’t mention intelligence, but that’s the only logical conclusion to draw from suggesting larger brains in our current population is an advantage or important, or “means nothing”/anything.
If you want to get on the eugenics train, Elon is available for discussion.
You’re putting words in my mouth, I’m only talking about the Homo genus’s increase in brain size due to evolution, and how c-sections will affect that over time
I’m not commenting on intelligence variation in Homo sapiens
And plenty of people smarter than you have debunked the notion that the size of the birth canal historically was significant to the size of brains, since most children experience most of their size increase after being born. That more children are saved via c-sections because they’re larger from earlier development or because they’re just relatively larger than their mother isn’t statistically significant for brain size or the practical results of that increase.
This has been covered in other replies and it’s obvious you’re being obtuse about it, so I’m ending the conversation from my end here. Enjoy arguing with someone else about it.
You mean other than being completely factually wrong?
Brain size hasn’t been historically limited by the size of the birth canal, it doesn’t work like that, most growth takes place after birth. The fact that some children develop faster in the womb and require a c-section doesn’t make it true either.
The context is that he’s replying to a known pusher of eugenics. It’s not completely apparent in the post Elon replied to, but if you see enough of that user’s posts it becomes apparent.
edit: it’s also worth mentioning that sometimes a larger child is simply due to genetics from one parent. I know many very tall, large people whose mothers are very tiny, petite people. It could be considered a miracle when the birth happens naturally in those cases, but doesn’t have anything to do with the child having a larger brain. They’re just generally relatively larger than their mother.
If brain size means nothing, then why have humans evolved larger brains over time?
Wouldn’t the increased risk of death during birth for large heads lead to a reduction in brain size over time?
And lastly, why are you being a dick about it?
Dolphins brains are like twice as big as humans, so they must be twice as smart!
Oranges are divided into multiple sections, while apples are generally homogeneous in the edible section
Sugar gliders are little rodents, while flying squirrels are generally edible in the home. Section divided multiply G.
No one said brain size doesn’t mean anything, although there is no documented correlation between brain size and intelligence, and since we don’t use most of our brains anyway, more volume mostly equals more unused volume.
What was said is that historically brain size wasn’t determined by the size of the birth canal, because most growth happens after birth anyway, and that’s the main functional reason for the skull to still be soft and need more protection than later. Else we would come out with fully formed brains and fully formed, hardened skulls.
Which should be obvious to you if you compare the size of any infant’s head with any adult’s head.
And why are you so sensitive about being asked what’s wrong with it other than it being completely factually wrong?
Here’s your correlation.
And you might want to double check that “don’t use most of our brains” part
Also, I never mentioned intelligence, that was all you.
I’ll break it down:
Before c-sections:
Head size is genetic
Some babies have heads too large for birth
Those babies die, and don’t pass on their genes
Add c-section technology:
Head size is genetic
Some babies have heads too large for birth
Those babies get c-sections and live
Big head babies pass on their big head genes to the next generation
Your add-on breakdown wasn’t necessary, you’re not informing me of anything, I already provided the relevant info in other replies.
You didn’t mention intelligence, but that’s the only logical conclusion to draw from suggesting larger brains in our current population is an advantage or important, or “means nothing”/anything.
If you want to get on the eugenics train, Elon is available for discussion.
You’re putting words in my mouth, I’m only talking about the Homo genus’s increase in brain size due to evolution, and how c-sections will affect that over time
I’m not commenting on intelligence variation in Homo sapiens
And plenty of people smarter than you have debunked the notion that the size of the birth canal historically was significant to the size of brains, since most children experience most of their size increase after being born. That more children are saved via c-sections because they’re larger from earlier development or because they’re just relatively larger than their mother isn’t statistically significant for brain size or the practical results of that increase.
This has been covered in other replies and it’s obvious you’re being obtuse about it, so I’m ending the conversation from my end here. Enjoy arguing with someone else about it.
Also, brain volume mostly doesn’t correlate to intelligence
True, pointed out here
https://reddthat.com/comment/6116928
it’s been a scattered thread