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by unnouinceput
2188 days ago
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Let's run wild some imagination. So 500 million light years as distance, meaning it started at least 500 millions years ago. Dinosaurs weren't existing back then. Imagine a civilization which has this energy output that is detected 500 million light years away. Wasn't some quote where a type 4 civilization technology is indistinguishable from natural phenomenons? |
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