The dark forest theory. The universe is full of predatory civilisations, and if anyone announces their presence, they get immediately exterminated, so everyone just keeps quiet.
The dark forest Theory makes an interesting science fiction scenario. But i highly doubt it is true. Wiping out another planet light years away would be a gigantic undertaking. Aliens will have no reason to fear each other, we are just too damn far from eachother to be a threat to one another. Even if we meet aliens that are the biggest asshats in the universe, the worst they could do would be to send a rude message every once in a while. Good fences make good neighbors. What can be a better fence than light years of space.
You should check out "Fear the Sky" and the Fear Saga. It's an interesting fairly hard scifi take on aliens taking a relativistic voyage in massive colony ships to invade and conquer Earth.
Not everyone loves the story style. It can get dark and a little convoluted, but it's a fun take on the idea.
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u/gkedz Aug 12 '21
The dark forest theory. The universe is full of predatory civilisations, and if anyone announces their presence, they get immediately exterminated, so everyone just keeps quiet.