Re: [meteorite-list] SETI, The Silurian Hypothesis, and Defining the Anthropocene

There is an interesting modern model for this: We are all familiar with the Inca civilization, thanks to its enormous stone ruins, but how many people are familiar with the Inca's contemporaries in the Amazon jungle? The Amazon culture was magnificently well organized, developed methods for growing

[meteorite-list] SETI, The Silurian Hypothesis, and Defining the Anthropocene

Was There a Civilization On Earth Before Humans? Adam Frank, The Atlantic, April 13, 2018 https://www.theatlantic.com/science/archive/2018/04/are-we-earths-only-civilization/557180/ Schmidt, G.A. and Frank, A., 2018. The Silurian hypothesis: would it be possible to detect an industrial civilizati