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A blog post I made putting this and the timeline of life on Earth on the same graph: http://hopefullyintersting.blogspot.com/2018/03/the-drake-equation-again.h
by Symmetry 8y ago
A blog post I made putting this and the timeline of life on Earth on the same graph:
http://hopefullyintersting.blogspot.com/2018/03/the-drake-equation-again.html http://hopefullyintersting.blogspot.com/2018/03/the-drake-eq...