I read something last week about how our minds and sleep and socialization are interrelated, and I sent a text to my email to remind myself to pursue this connection, and I forgot my references.
Anyhoo, the thought that seems to be the insight, or connection of multiple ideas is this:
The less sleep a person gets, the lower his level of skill at social interaction. - Persons who can afford to sleep more have advanced social skills. As a species, we have advanced due to higher levels of sleep and thus social interaction. And we have built and maintained technically complex structures, both physically and socially.
Just another block in the foundation.