If another civilisation lived on Earth before us, would we know?

7 points by billybuckwheat 23 days ago | 2 comments

chistev 23 days ago |

The Silurian Hypothesis (2020) (theparisreview.org) 67 points 17 hours ago 112 comments

johncoltrane 22 days ago |

There have been lots of civilisations before. Some that we know of and maybe some that we don't know of yet.

chistev 23 days ago |

The Silurian Hypothesis (2020) (theparisreview.org) 67 points 17 hours ago 112 comments

johncoltrane 22 days ago |

There have been lots of civilisations before. Some that we know of and maybe some that we don't know of yet.