The main civilization underwater just doesn’t care enough about the surface to do anything for the most part. What do you think of this possibility?
I think this is part of why the mystery is hard to nail down.
That there are physical beings/crafts from inner earth that fly around. (Probably typically known as demons)(probably the grays)
There are beings/crafts from alternate dimensions that fly around. ( also probably typically known as angels and demons) (these other dimensions could be what has been known as heaven and hell)
I also want to believe that there are actual extraterrestrials from other planets/solar systems, but they probably constitute 0.1% of the UAP phenomenon. (They are probably human like and typically called Nordics.)
I believe it could be possible that some of these ships/beings are time travelers from the future (and maybe the past).
Also! I believe that now there are probably reversed engineered crafts flying around.
So, inner earth beings, time travelers, extradimensional, extraterrestrial, US black projects. Did i miss anything?
I don’t think so, they are millions of years ahead of us. They wouldn’t just crash like a drunk driver.