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First Contact Could Turn Out Well for Humanity

Most science fiction portrays the first contact between humanity and alien civilizations as a disaster. That's probably because our history hasn't turned out so well. But does it have to end poorly for us? A new paper looks at the game theory of first contact. It shows that the rational response to another civilization is to be cautious, with both groups understanding the other before taking decisive action. Communication would be difficult but not impossible. Since we share a physical Universe and have reached a technology level that allows us to detect each other, we could assume some of their characteristics in advance.

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