They Don’t Exist
Part of the Science and Fiction book series (SCIFICT)
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The final class of solutions to the Fermi paradox are based around the notion that for some reason “they”—extraterrestrial civilizations with whom we might hope to communicate—don’t exist.
KeywordsPlate Tectonic Mass Extinction Planetary System Protoplanetary Disk Habitable Zone
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
© Springer International Publishing Switzerland 2015