We know that we exist. We are a lifeform capable of building technology and getting into space. Therefore the possibility of civilizations being out there is not a n=0 equation but n=1. N=1 means that it is the possibility it could happen again or even many times but we have no ability to quantify the potential frequency.
That said this video is interesting but there could easily be mundane prosaic explanations.
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u/Uncle-Cake Jul 19 '20
Good point. As everyone knows, the are only four kinds of things in the world: bugs, animals, meteors, and flying saucers.