Crucial point is this: Does having to deliver a human skull through the birth canal place constraints on intelligence, or not? ...
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Replying to @Outsideness @SeverEnergia and
Many other physical factors of intelligence could be tweaked for enhancement before we run into hard limits from cranial capacity.
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Replying to @mfckr_ @Outsideness and
neanderthals had larger craniums than homo sapiens, but we have to look a lot harder to find signs of intelligence
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Replying to @bitemyapp @Outsideness and
Mentioned that too, but this was hand-waved as anecdotal.
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Replying to @mfckr_ @Outsideness and
cranial capacity correlates more strongly with hippocampal function than what we would recognize as intelligence
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Replying to @bitemyapp @Outsideness and
Interesting… got a paper re: that on hand by chance?
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Replying to @mfckr_ @Outsideness and
here's a couple Dunbar (yeah, that guy) papers: http://rsbl.royalsocietypublishing.org/content/roybiolett/early/2011/07/12/rsbl.2011.0570.full.pdf … http://www.uvm.edu/pdodds/files/papers/others/1993/dunbar1993a.pdf …
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Replying to @bitemyapp @mfckr_ and
overall my impression is: 1. we don't have a reason to believe cranial capacity correlates strongly with IQ
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Replying to @bitemyapp @mfckr_ and
2. sensory processing seems to require more volume than g or be more sensitive to volume available
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Replying to @bitemyapp @mfckr_ and
3. If anything, if you extrapolate from data available for moderns, cranial capacity correlates inversely with IQ, but…environment.
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So why is human child-birth torture, realistically? Gnon is evidently willing to rack women hard to squeeze-out bigger heads.
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Replying to @Outsideness @bitemyapp and
Neonate skulls are very soft and pliable though. And female human hips are larger to accommodate. All kinds of hacky workarounds.
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