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Also, any civilization capable of harnessing the amount of energy needed for interstellar travel would have long ago destroyed themselves if they hadn't outgrow

Also, any civilization capable of harnessing the amount of energy needed for interstellar travel would have long ago destroyed themselves if they hadn't outgrown violent competition over resources. (The likelihood that few or no societies do so is the most likely answer to the Fermi paradox, and is strongly suggested by our own historical trajectory — see TFA.)

corty 5y ago
Not necessarily. I think a belligerent alien civilization might be frequently warring amongst themselves, driving various factions to flee their planet/system/local group. If transport and hiding were easier than seeking out and killing those factions, such a civilization would spread quickly, driven by their belligerence.
RcouF1uZ4gsC 5y ago
> Also, any civilization capable of harnessing the amount of energy needed for interstellar travel would have long ago destroyed themselves if they hadn't outgrown violent competition over resources. If you replace inter-stellar with inter-continental, that might just be something that a (misguided) Aztec wise man would say when he met Cortez.