I've been reading "The User Illusion" by Tor Norretranders, and it's by far one of the most interesting books I've ever read. It's at the part where they discuss the theory of man having a bicameral ...

When did humans realize we've been talking to ourselves from the beginning of time? Bicameral Mentality: Some theories, like Julian Jaynes's theory of bicameral mentality, suggest that early humans ...