And by aliens I mean, outer space creatures and UFO. For whatever reason all UFO sighting footage looks either fake or like recorded with a Casio keyboard. And I find hard to believe we don’t have any decent footage of them with all the surveillance and technology we have now.
Edit: 🍿
That we know of, yet. We haven’t even had particle accelerators for a hundred years; let’s give it at least 500 years of scientific research and discoveries before we say definitively that we absolutely know, without any doubts, that there’s no way around conservation of momentum.
I ain’t saying there is a way; just that we are very young, and very immature.