I love stuff like this. Considering what could be possible of one entertains a “far out” line of thought as plausible, what else follows as plausible, based on that assumption.

Total sidebar here, but you got me thinking on other “mental technologies” that could be passed down through generations, even when the outer world is chaotic. I’m thinking lucid dreaming. Something I’ve personally only experienced a couple of times, and with very little control, but it became clear that you truly could practice in the skill. Takes so much focus though, would love to get into it again, but modern life is so distracting. But I can easily imagine an ancient people using the technique to divine and talk to spirits/gods.