I'm not sure, but the Bible mentions chariots of fire, which is either illogical, holy, or aliens. Glass has been found scattered throughout many deserts, indicating there was lots of heat (idk, I don't make glass...). Roswell was absolutely fake, intended only to steer Americans to the wrong path. What we see as UFOs are indeed ET craft, so just as how there are many types of automobile, there many types of spacecraft. The Grays kidnap us, denude us, examine our health, perform mindfucking examinations, impregnate us (if you're female), tour us, answer our questions (rarely), then beam us down to our cozy bedrooms.
I've aaaaaaaaaalways wanted to say that...
I hope I don't sound pretentious...