Time Machine: Cause of Autism #2
June 19, 2008 |
5 Comments
Category: 10-Autism, Autism, Causes of Autism, Sexual Selection, Sexual Selection/Social Structure, Society, Somali Autism & Ethnicity
Though little discussed, the ability to send our children back in time is an ability all of us have. This ability has to do with how we choose a mate.
It has been estimated that our lineage of homo departed Africa around 50,000 years ago. From there, the various branchings of humanity began. There is evidence of overlap with Neanderthals in Europe, but there is no certainty of conjugational relations. Regardless, as bands then tribes grew separated by greater geographic spans, the last common descendant between diverging lineage threads grew further apart in distance and in time.
Academics have hypothesized several reasons that humans left Africa. I would suggest that robust language facility had no small amount to do with the compulsion to explore. We might conclude that language was well established because across the planet, most cultures display a relatively small number of left-handers, anywhere from 2-12 %. This number suggests that those that left Africa used the same brain we right-handers have today–larger left lobe with smaller corpus callosum–as opposed to the alternative, earlier left-hander model of both lobes being similarly sized with larger corpus callosum.
We might also consider whether those myths and stories that seem to…


