Isaac Arthur on MSN
The Fermi Paradox: Zoo Hypothesis
The Zoo Hypothesis is a Fermi Paradox solution that assumes extraterrestrial civilizations can't be detected by our SETI efforts because they keep our whole world in an Alien Zoo.
Take a first look at the new queue, and preview the new 3D film, Zootopia: Better Zoogether!, in the Tree of Life Theater at ...
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