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The Silurian hypothesis is a thought experiment which assesses the ability of modern science to detect evidence of a prior advanced civilization, perhaps several million years ago. The most probable indications of such a civilization might be carbon, radioactive elements or…
The Silurian hypothesis is a thought experiment which assesses the ability of modern science to detect evidence of a prior advanced civilization, perhaps several million years ago. The most probable indications of such a civilization might be carbon, radioactive elements or…
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