https://slatestarcodex.com/2020/06/01/book-review-origin-of-consciousness-in-the-breakdown-of-the-bicameral-mind/

I.

Julian Jaynes’ The Origin Of Consciousness In The Breakdown Of The Bicameral Mind is a brilliant book, with only two minor flaws. First, that it purports to explains the origin of consciousness. And second, that it posits a breakdown of the bicameral mind. I think it’s possible to route around these flaws while keeping the thesis otherwise intact. So I’m going to start by reviewing a slightly different book, the one Jaynes should have written. Then I’ll talk about the more dubious one he actually wrote.

My hypothetical Jaynes 2.0 is a book about theory-of-mind. Theory-of-mind is our intuitive model of how the mind works. It has no relation to intellectual theories about how the mind is made of cognitive algorithms or instantiated on neurons in the brain. Every schoolchild has theory-of-mind. It goes like this: the mind is an imaginary space containing things like thoughts, emotions, and desires. I have mine and you have yours. I can see what’s inside my mind, but not what’s inside your mind, and vice versa. I mostly choose the things that are in my mind at any given time: I will thoughts to happen, and they happen; I will myself to make a decision, and it gets made. This needs a resource called willpower; if I don’t have enough willpower, sometimes the things that happen in my mind aren’t the ones I want. When important things happen, sometimes my mind gets strong emotions; this is natural, but I need to use lots of willpower to make sure I don’t get overwhelmed by them and make bad decisions.