The Key to understanding everything is the Noah's Ark flood. We don't need to find the Ark to accept that the tale is true now, since we've found the evidence for the flood and the impact crater right around 4000 B.C. So just as we thought the city of Troy was a myth until we found it, we now also know that the Ark story is a true one, repeated by many cultures and many religions. But the only way that Noah could have known about an impending asteroid impact at least a month before it happened is if he were warned about it by a race MORE ADVANCED THAN HUMANS are now..
Because even now, with us trying (mostly unsuccessfully) to train all our modern technology on the sky to detecting dangerous incoming asteroids, we are regularly every few years scared by a large near miss that came out of nowhere. The only possible way that Noah could have been warned is by a space-faring race of humans (they could interbreed with us, so same species) that was far older and more technologically advanced than we are now. We almost have star trek communicator and 3-D printing technology and iRobots now; think where we will be in a 100 years? How about 1000 years? There is evidence that civilization on this earth stretches back tens of thousands, even hundreds of thousands of years. In all that time humans with our level of IQ and intelligence existed; does it seem reasonable to you that humans of OUR level of intelligence took 10,000 or 100,000 years to develop SOME kind of civilization, especially since we've progressed from the bronze age to space faring techno-agrarian civilization in less than 5,000 years?
Here's the other key thing; we KNOW that the idea of anti-gravity, and warping of space-time, are within the realm of theoretical scientific possibility. It's not a big stretch to say that we will likely have the Grand Unified Theory (G.U.T.) of Physics within a hundred years (where's another Einstein and Tesla when you need one?..). That means that we'd be able to get gravitational motion effects from our electrical devices the same way we get magnetic motion affects from electricity with our motors now. That means gravitational 'anti-gravity', 'artificial gravity'. We wouldn't need wheels anymore, and lifting 1200 ton granite or quartz blocks would be a breeze.. which nicely explains the countless megalithic stone monuments and underground cities we keep finding more and more of around the world.
The only theory that fits all the evidence and religious 'legends' is that there was a race of white (the light skin, hair and eyes comes from evolving in the northern latitudes that make advanced civilization a necessity in the first place) humans that achieved incredible technology and indefinite lifespans of tens of thousands of years (like the Elves of our legends..) that could not help but seem like lower-case gods to us. In other words, the ancient gods of the greeks/romans/norse and the 'angels' and 'nephalim' of the Bible/Torah were a real race of humans who interbred, helped, and interacted with us to create the great demi-gods of our legends and help us with our technology and civilization. Furthermore, if you read Genesis, especially the tale of Sodom and Gamorrah, you will realize that Yahveh (Jehovah is a misspelling and mispronunciation) was a REAL entity, a REAL person who had a body 'in our image', who ate, talked, got angry, was jealous, etc, just as how the greek/roman/norse gods are described. The angels whom Yahveh sent to Gamorrah were REAL PEOPLE (they only painted wings on them because they didn't have a better way to convey that these dudes could FLY; they at least had spacecraft and aircraft, but they probably had some kind of Nike sneaker that would let you fly as well..).
Someone as intelligent and visionary as Arthur C. Clarke said the most believable UFO Close Encounter witnesses were the ones who claimed the 'aliens' looked like MORE BEAUTIFUL VERSIONS OF US, 'so beautiful it was hard to look at them', just like the angels are described in the Bible/Torah..
Here's something else.. if it's looking like the legends of the greek gods/angels breeding with humans and creating incredible offspring are true, and Yahveh was a real dude, high king of a race with the technological power to lift mountainous blocks or hurl asteroids, then maybe he really did give us his LITERAL son in Jesus Christ.. and we killed him (white roman pre-christians and jews alike..).. and that means the only reason we are alive and weren't wiped out by another asteroid is because Jesus plead and begged on our behalf, even as we tortured and killed him..
Since the gods/Yahveh told us they would return, it is only reasonable to believe that it is they who are in the UFO's that the Navy has been recently disclosing and that the CIA and Government has been covering up for 50 years.
