I think you are making my point about the Drake equation.
If you set the values based on known and habitable planets the number of potential civilizations is billions. If there are billions where are they? If there aren’t billions how did they find us? As unfathomable as their technology may be our emissions are known and measurable and travel at the speed of light for about 100 or so years.
So in order to find this needle in a haystack that is us they need to be everywhere in the universe so where are they. And since they appear to be at least attempting to hide and hide there space radiation from their empire amazingly well why would we ever be able to detect them on earth.
The aliens that are described as visiting us need to be amazingly advanced to exist yet comically bad at disguising themselves.
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