Open mindedness is NOT the same as blindy accepting dumb fairy tales without any proof.

Will, if you would stop saying that there is proof and provide some, please. Thank you. YOU have the burden of proof, since YOU are the one making the positive claim.

The ancient sivilizations knew nothing compared to us. Sure, they might've realized the basic movements of planets and such, but they sure as heck didn't know what the starts were made of, how long they had been there, how they came there, and why they were even visible.

Can't replicate a pyramid? Who would invest the resources into making such a useless journey. Sure, it'd be interesting, but nobody is really trying to do it that seriously.

Science is needed to compile the theory. Before that, it's a hypothesis. If it is not more possible than other insane hypothesises, it's as useless as any rambling of an insane man.