"And I sure don't believe ..."
Why not? Are you saying it's not possible? You/we don't know what you don't know.
Can you prove aliens don't exist?
Do you believe there is a 'Planet X/Nibiru? Scientists/astronomers already agree there is, & it is very, very large, comes into earth's view about once every 3,600 years. Much of what Sitchin wrote has already been confirmed.
Btw, why would NASA/any gov. on earth tell the people, if those governments knew of a potential cataclysm which was eminent in their near future was going to happen? Read NASA's 1960 Brookings Institution's report on UFO disclosure. They confirm, that disclosing the existence by governments, of ETs, would do much more harm & damage than good.
Do you believe our government can't tell a weather balloon from a ufo?
Explain the 'Wedge of Aiud'?
https://www.msn.com/en-us/news/life...sion-of-exotic-materials-from-ufos/vi-AAKbAzq
Do you know what can happen to gov. employees who break their NDA contracts?
They can literally lose all their gov. pay, benefits access & more.