long story short.
Civilization is older then the 10k magic number.
we had "pre-flood" civilizations that was wiped out from natural catastrophe.
extrem weather changes, loss of crops, loss of order and so on you get the picture.
took a couple of thousand years to settle down and that's where our civilization starts from
and when it comes to dogi people and there knowledge its false, if you can navigate with the stars but want so keep inte secret from the rest. how do you conduct that kind of behavior?
you tell them look at that star," its my home planet" i am god and so on
mystery babylon