People make claims here all the time without evidence and don't get downvoted. How absurd.

> Also they drive invisible cars

Maybe you mean flying cars, because if there's one thing I've learned about alien life it's that they only exist in the sky.

I mean I thought this too but this is the one area, particularly under recent events, that I think it’s reasonable to start trying to come up with good non-prosaic explanations. You’ll probably find an increasingly surprising number of people talking and thinking about this in a serious way, because events seem to be pointing to something that isn’t just smoke and mirrors the entire way down. It’s smoke and mirrors to be sure in many ways. But it’s sufficiently uniquely weird that it is looking increasingly likely there is a significant non-prosaic thing going on here.

Hah, this is the second time in the last half a year where I've heard the "underground civilization" theory. The previous person mentioning it to me was totally serious too...

beats me. some people have emotional reactions to hypotheses around the UAP phenomenon. it's not that surprising given the implications of if it is due to non-human intelligence, but it's annoying that speculative theorizing about this is treated the way it is compared to other mysteries.