The Fermi Paradox: Hidden Alien Civilizations

The Universe seems empty of alien civilizations, but could they simply be hiding, and if so, how would they do so? Watch the Video Version: https://youtu.be/1S2V6op8kkM Get a free month of Curiosity Stream: https://curiositystream.com/isaacarthur Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Credits: The Fermi Paradox: Hidden Alien...