There is some stuff that recently came up and isn't by hacks or loonies, I've seen them on Joe Rogan's show. Guys like Bob Lazar, Graham Hancock and Commander Fravor - the guy who officialy chased an UFO in a jet, published by Pentagon and New York Times. So according to Graham, the Great Flood which is in many mythologies did in fact happen 12 000 years ago and wiped out civilization that was at least capable of navigating open ocean - so our 18th century. There's something about DNA in the America's natives, how some pharoh's priest told father of Socrates that 9000 years ago great flood wiped out everything except and they are the keepers of knowledge about these catastrophies that cyclically happen. Also that they were thought by the survivors of this advanced civilization, linking them with Mayans and others in culture. Socrates told Plato I think and Plato told us about Atlantis. Bob Lazar is the scientist who was hired to try to figure out one of the UFO's crashed in USA, they can fly them but they don't know how they work and they can't look inside or reverse engineer them. They fly using antigrav same as UFO's that commander Fravor chased. Could these be our ancestral civilization that was sick of being hit by natural disasters(including meteors) and went under sea, or another species that evolved before us, Bob said the sits were meant for something the size of a child, or just straight up extraterrestrials? Clearly they are observing us but not wanting to get into contact. I don't think it'd be wise to go over their spot they seem to gather around and probe them with sonars(their ships go under water, when you have antigrav you don't give a fuck). It'd be sweet if humanity can skip that pathetic sci fi phase of space colonozitation with chemical thrust and go straight up to antigrav.