Abstract
Could contact with a more powerful civilization endanger our safety, even our survival? This is the question that most sharply divides the optimists from the pessimists.
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If there are globes in the heaven similar to our Earth, do we vie with them over who occupies the better portion of the universe? —Johannes Kepler, 16101
Should we ever hear the space-phone ringing, for God’s sake let us not answer, but rather make ourselves as inconspicuous as possible to avoid attracting attention! —Astronomer Zdenek Kopal, 19722
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References
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Michaud, M.A.G. (2007). Dangers. In: Contact with Alien Civilizations. Springer, New York, NY. https://doi.org/10.1007/978-0-387-68618-9_24
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