Re: Excerpt from an article on Smithsonian.com

> "humans needed to fuel their outsize brains....more cognitively
> aware, faster-wired, faster-brained, smarter..sudden increase
> in brainpower,....onset of speech" - due to genius "seafood"?
>
> "Then how on Earth did and do these humans manage......???"
>
> Long list of people snipped.
>
> I think the reference is to pre modern humans with smaller brains not
> between current modern humans.

"It isn't."

"outsize brains"  "increase in brainpower" and "onset of speech" all refer
as reference to pre modern humans.  There is no claim that between modern
humans are so described.
  
From the post:

"paleoanthropologist Richard Klein has long argued that a genetic
mutation at roughly this point in human history provoked a sudden
increase in brainpower, perhaps linked to the onset of speech."

As I said, it played in human evolution as an advantage over pre modern
humans.