Really ya don't say. Anyone who's been paying attention knows Humanity has had multiple global high technology technologies that kept getting destroyed by huge event natural disasters and suffering through long dark ages. The current establishment academia are purposefully deceiving everyone. We are just coming out of that dark age from the last catastrophe around 10-11 thousand years ago. They left us messages but establishment academia either hides or destroys those messages and even distort the ones that get leaked before they've had a chance to put their spin on things. Also, we are species that suffers from amnesia when it comes to that.