Wild theory: most of the human brain is there to harness untrammelled intelligence to the organism's best interests.
There is so much, because intelligence needs a complex cage - without the cage becoming sentient itself. A bit like a finite state automaton containing a Turing machine.
People can still escape, but it's hard. Disorders like autism represent failure of the cage.
There is so much, because intelligence needs a complex cage - without the cage becoming sentient itself. A bit like a finite state automaton containing a Turing machine. People can still escape, but it's hard. Disorders like autism represent failure of the cage.