alt Hacker NewsIsn't this a testable hypothesis? If consciousness spread virally and isn't a natural outgrowth of the physical structure of the brain, then presumably isolated indigenous tribes would still have pre-consciousness mental processes, and that should be detectable somehow.
The being said, I'm reading "Proto" By Laura Spinney, and the thing that strikes me is how recently the world's major languages developed. Everyone assumes we had language fifty thousand years ago, but the actual language families we know about all seem to trace to no more than about 10,000 BCE, and maybe a lot younger than that. The odds of Proto-Indo-European being traceable to a single tribe in the Black Sea region circa 4500 BCE seem really low to me, but that's what seems to have happened.
Replies
Jaynes relies on some earlier work that's been invalidated, like Bruno Snell's idea of archaic Greeks lacking a concept of an integrated body because they painted what appear to be individual limbs on vases from the geometric period. Snell wrote _The Discovery of the Mind_ in 1946. Since then archaeology has found amazing art like the Pylos Combat Agate from before the geometric period, demonstrating lifelike, realistic bodies rather than assemblages of limbs: the aesthetic of the geometric period was a choice, not evidence of a different kind of consciousness lacking a sense of self.
There’s a fascinating book called Don’t Sleep, There Are Snakes by Daniel Everett that covers the Piraha people in the Amazon.
Their language is unusual: no recurrent sentences, almost no discussion of the past. I’m not suggesting they are unconscious but there appears to be something different going on with the Piraha sociolinguistically.
The language thing is just that without writing, reconstructions based on regular sound correspondences only allow us to infer backwards by a few thousand years. It doesn't mean that anything particularly interesting happened exactly at that time to human language. It's just that language changes relatively fast on this timescale so current languages don't offer enough clues.
And the origins of language are famously uncertain. Might have been recent and relatively sudden (<100 thousand years ago) or a gradual slope for many hundreds of thousands of years.
The fact that 100k years ago we could have seen 7 Pleiades with the naked eye but angles shifted since and now only 6, but unconnected traditions speak of 7 entities in tales of their origins may indicate we have had language far sooner than 10,000 BCE.
Our language development and our awareness is currently tied to writing/record keeping. Hard for us to know anything about prehistoric languages.
Slate Star Codex reviewed Jaynes' book as well, which is how I first heard about it: https://slatestarcodex.com/2020/06/01/book-review-origin-of-...
To your point:
> Isn't this a testable hypothesis? If consciousness spread virally and isn't a natural outgrowth of the physical structure of the brain, then presumably isolated indigenous tribes would still have pre-consciousness mental processes, and that should be detectable somehow.
SSC's article points to a Reddit thread that suggests even folks in the mainstream of culture may undergo a "consciousness transition" as adults: https://www.reddit.com/r/self/comments/3yrw2i/i_never_though...
"Somehow"
We have no idea what consciousness is, and cannot reliably detect it in other mammals, or even in other humans. I assume that you, GlenTheMachine, are conscious, but I cannot prove it. I think the most we can state, with a little assurance, is that people under general anesthesia are not conscious.