# \#paleocene–eocene-therm-max

**URL:** https://scanalyst.fourmilab.ch/tag/paleocene-eocene-therm-max/2805.md

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## [The Silurian Hypothesis—a Technological Civilisation on Earth before Humans?](https://scanalyst.fourmilab.ch/t/the-silurian-hypothesis-a-technological-civilisation-on-earth-before-humans/2008)

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**Author:** [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Replies:** 7\
**Last updated:** [17 September 2022 01:03 UTC](https://scanalyst.fourmilab.ch/t/the-silurian-hypothesis-a-technological-civilisation-on-earth-before-humans/2008 "2022-09-17T01:03:21Z")

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Here is the 2018 research paper which gave the name “Silurian hypothesis” to the possibility that Earth may have been home to one or more technological civilisations before humans, whose traces have now bee…