Running into an alien on the bus would be strange — but it's almost equally strange that humankind has never encountered aliens. The universe is vast. Can we really be alone in it? (Cue "X-Files" theme song.)
The Fermi Paradox
The Spooky "Zoo Hypothesis"
The "Alien Zoo" Theory
Perhaps alien lifeforms are treating Earth like a zoo, and are observing it all without disturbing us.
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Written by Joanie Faletto April 18, 2018
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