You're talking about ancient astronomy or geology? Sure, they tracked patterns in the stars and natural disasters. Mind you, they didn't know what the stars, floods, or volcanoes were.

But did they track what human life was like tens of thousands of years earlier? They might have guessed because some social patterns were stagnant. But prior to the invention of writing, the oral traditions would have been inherently mythical or legendary since the transmissions would have been corrupted over many retellings. That's the problem with hearsay.

You seem to be saying that myths encode ancient information. But myths are ambiguous because they're fictions, so you can find what you like in them, no?

You also refer to an "ancient, global mythopoetic / mnemotechnical tradition." The "mythopoetic" part would seem to concede the point I'm trying to make. The prehistoric perspectives would have been childlike and enchanted in that they were formed largely by fantasy filling in for ignorance, due to the lack of much scientific understanding.