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External Link : https://www.technologyreview.com/s/610886/if-we-werent-the-first-industrial-civilization-on-earth-would-we-ever-know/
If we weren’t the first industrial civilization on Earth, would we ever know?
Fossils and objects are unlikely to survive more than a few million years. Searching for chemical traces of industrialization offers an intriguing alternative.
techwizardry