Random Fermi Paradox solution of the day:
Nobody goes into space and colonizes the galaxy because only Moon Nazis want to do that, and after experiencing a few dozen genocides all sapient species learn the safest thing to do when you see a Moon Nazi is to murder them immediately, it's the only way to avoid the genocides.
Oddly enough, this is what 'primitive' tribes used to do: kill the sociopaths. We promote them to the highest positions of power.
"Random Fermi Paradox solution of the day:
"Nobody goes into space and colonizes the galaxy because only Moon Nazis want to do that, and after experiencing a few dozen genocides all sapient species learn the safest thing to do when you see a Moon Nazi is to murder them immediately, it's the only way to avoid the genocides."