I first heard this idea a few days ago. Seems far fetched as a general idea already. The idea that this is also something that suddenly happened to every individual at once is ridiculous.

> McGilchrist likely felt compelled to go out of his way to criticize Jaynes’s theory because McGilchrist is arguing for the exact opposite case as Jaynes: that rather than our brain hemispheres being more integrated today than in the distant past, he argues that they are now less integrated, and that our brains have essentially been hijacked by our left hemispheres. Further, according to McGilchrist, this left hemispheric dominance is the cause of most of the ills of Western civilization. For all of these sweeping claims, he presents shockingly little evidence.

https://www.julianjaynes.org/about/about-jaynes-theory/criti...