This infographic sets out several solutions to the Fermi Paradox that are less pessimistic than advanced civilisations tend to destroy themselves before they reach interstellar travel.
In the Greenstar Universe, our answer to the Fermi Paradox was a predator civilisation with a of the few others mixed in; it just happened that humanity was the predator civilisation. Who says politics isn’t comical?
Do you have a theory they don’t mention? Do you find any of these theories too unlikely to be the real one?