Talk politics.

Having read through Liu Cixin's 2nd book from his trilogy Remembrance of Earth's Past, The Dark Forest, I've come across this take on the Fermi paradox:

Dark forest hypothesis (wiki)

The dark forest hypothesis is the idea that many alien civilizations exist throughout the universe, but are both silent and paranoid. In this framing, it is presumed that any space-faring civilization would view any other intelligent life as an inevitable threat,[2] and thus destroy any nascent life that makes its presence known. As a result, the electromagnetic spectrum would be relatively silent, without evidence of any intelligent alien life, as in a "dark forest" filled with "armed hunter(s) stalking through the trees like a ghost".

There's also a nice Kurzgesagt video on the subject (their vids are always awesome):
Youtube link

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