I hadn’t read that quote of Richard regarding the disparagement of thought in Indian religion.
I know this may sound like a banging on about a theory, but I do find it a far stretch to imagine (which is what we are doing when talking about human evolution) that 400000 years of modern human/ Neanderthal (generically interbreeding evidence means we are one species), with the later having a significantly larger brain than ours, where for the majority of that time thinking and feeling like modem humans do.
It seems far more likely that up until relatively recently, they had a very different, far less ‘self’ like existence.
It’s very much a “theory of mind” issue, in which we project ourselves onto the other and literally imagine a ‘self’ like our own being there.
‘self’ consciousness is just far more likely to be very modern, if not entirely overlapping Indian religions.
One of the points Jaynes makes, if not the central point of his work, is all the practices of altering our consciousness towards “trance” is an attempt to get back to the pre-modern mind.
To imagine that of the 103 billion humans who have lived in the last 40000 years, let alone 4000000 years were all so similar to us in self consciousness yet so absolutely incapable and devoid of anyone as intrepid as Richard seem a really vivid imagining.
That is to say, there was something in the way for there to be the breakthrough. That something being a lack of ‘self’ consciousness. Not a lack of a ‘self’, but lack of the individual modern version of it.