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This is also why it is silly to even consider defense against a hostile alien threat that arrives in our solar system. If they have a spacecraft capable of cro
by jandrese 5y ago
This is also why it is silly to even consider defense against a hostile alien threat that arrives in our solar system. If they have a spacecraft capable of crossing interstellar distances then wiping out all life on Earth without warning is a trivial problem.
- KineticLensman 5y agoDon't get me started on the aliens in Harry Turtledove's WorldWar alt history. Being completely genre-naïve, they cross interstellar space and then proceed to fight WWII-era earthlings with approx F22-level technology and not unsurprisingly get bogged down in a stupid attritional war. Why didn't they just drop rocks on us from orbit?