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Topic | Why we might be alone in the universe |
InfinityMonster 11/04/19 9:37:26 PM #17: | Didn't watch the video, but it seems like it's about the Rare Earth Hypothesis, which is outdated and highly restrictive. There's anywhere from 100 billion to 500 billion planets in this galaxy alone. About a trillion in our sister galaxy. ... Copied to Clipboard! |
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