Liu Cixin&#x27;s The Dark Forest, the second book in his 3-body problem trilogy, posits a similar philosophy: resources are limited so civilizations annihilate other civilizations. So if an alien civilization knew about earthlings, they will destroy earth ASAP if they are capable, lest the earthlings come after their resources.<p>This is also why some people believe we should not try to make contact with intelligent alien life. They believe broadcasting our location is dangerous.