currently into unchartedx - incredible stuff about hard (literally evidence of ancient civilizations capable of engineering we are only barely able to match.  normie archaeology completely ignores / buries this stuff as it is incompatible with their narrative.

seems plausible there were high tech civilizations >10k yr ago that were destroyed by some kind of catastrophic climate change, and only stonework remains.

Good example: granite vessels machined to a thousandth of an inch and apparently designed and manufactured using machine computation of some kind
https://www.youtube.com/watch?v=QzFMDS6dkWU