UM-Bot Posted May 13, 2022 #1 Share Posted May 13, 2022 (IP: Staff) · Two researchers have come up with a possible answer as to why we have yet to encounter intelligent aliens. https://www.unexplained-mysteries.com/news/357590/alien-civilizations-could-be-doomed-to-stagnate-or-collapse 1 Top Link to comment Share on other sites More sharing options...
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