What if Humans Are NOT Earth's First Civilization? | Silurian Hypothesis
PBS Space Time · 1 HN recommendations
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PBS Space Time examines the Silurian hypothesis, the idea that an industrial civilization could have existed on Earth before humans. It looks at what traces such a civilization might leave in the geological record.
Why HN recommends it: HN uses it as an approachable treatment of whether an earlier industrial civilization would be detectable in geology.
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