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Our most recent calculations show that there should be at least 100,000 civilizations in the Milky Way. The question remains: where are they all? This is the Fermi Paradox, and in this video we will present the best hypotheses to try to explain why no civilization (if they exist) has made contact with us yet. We need your help to reach our first goal! Become a subscriber to our Catarse and receive exclusive rewards! http://catarse.me/cienciatododia Facebook: /cienciatododia Twitter: /cienciatododia Personal Twitter: /pedroloos Contact: [email protected] A special thanks to the patrons who helped make this video possible: Fernando Sequeira Sources and Further Reading: https://waitbutwhy.com/2014/05/fermi-... https://en.wikipedia.org/wiki/Fermi_p... https://www.nasa.gov/feature/goddard/... Introduction by Caique Oliveira (http://bit.ly/1MLhBHO) and music by Adolfo Scheidt (http://bit.ly/23MppAE)