Maybe this idea was just put in my head by Julian Jaynes in The Origin of Consciousness in the Breakdown of the Bicameral Mind? It’s a great book that was recommended to me by a HN comment last year.
Besides being all the more relevant in the age of non-conscious language models, the book also makes the case that Homeric epics were not created consciously. Instead, Jaynes claims, these poems originated in the unconscious right hemisphere and were blindly recited by those who could not ignore the metered, schizophrenic prose forced upon them by their bicameral mind.
Anyway, the video is neat, and it makes me all the more curious what it would’ve been like to hear one of these in 600 BC.