Aka, what factors cause civilizational collapse before a society is advanced enough to be detectable via broadcast signals like light from structures, like emitted radio waves and other broadcasts. Wars, famines, fear that drives societies into hiding, or suppresses them to the point where they cant progress beyond hunter/gather type structures.
See also the Fermi Paradox.
Aka, what factors cause civilizational collapse before a society is advanced enough to be detectable via broadcast signals like light from structures, like emitted radio waves and other broadcasts. Wars, famines, fear that drives societies into hiding, or suppresses them to the point where they cant progress beyond hunter/gather type structures.
Reminds me of the 3 Body Problem series