https://www.spectrumnews.org/news/big-brain-may-mark-subtype-of-autism/
I have read theories where they thought Man was possibly the result of "neoteny", when a sexually-mature adult animal retains aspects of its childish form.
I've also been saying for a while that Man looks to me more and more like an idiot savant amongst animals, rather than a paragon.
He brags about his big brain making him the technological Godzilla that he is, but it looks like human brains getting bigger just make them worse ...
I wonder what that says about the Neanderthal.
bigger brain, higher IQ. Haven't you seen the aliens? and then, it's really having a bigger frontal lobe.
https://www.smithsonianmag.com/science-nature/why-brain-size-doesnt-correlate-with-intelligence-180947627/
https://neuroscience.stanford.edu/news/ask-neuroscientist-does-bigger-brain-make-you-smarter
"intelligence is more correlated with frontal lobe volume"