Where are all the aliens?! This is the essence to the Fermi Paradox. It’s most popular solution is the “Great Filter.” What is the obstacle that life and/or intelligent species are unlikely to survive? Let’s discuss.
00:00 Cold Open
00:18 Introduction
00:48 History of the Fermi Paradox
02:48 Fermi Paradox Explained
03:55 Drake Equation Explained
07:04 The Great Filter
09:56 Rare Earth Hypothesis
10:53 Geologic Time in Galactic Years
14:48 Evolution of Intelligent Life
17:03 Conclusions
19:11 Poll Results
19:47 Outro
20:10 Featured Comment
Nick Lucid – Host/Writer/Editor/Animator
Natalie Wells – Researcher
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VIDEO ANNOTATIONS/CARDS
What is Life?
Cosmic Time:
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RELATED YOUTUBE VIDEOS
PBS Space Time on Fermi Paradox:
Kurzgesagt on Fermi Paradox:
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OTHER SOURCES
General Background:
https://www.seti.org/project-ozma
https://www.seti.org/drake-equation-index
https://www.aip.org/history-programs/niels-bohr-library/oral-histories/30665
https://www.lanl.gov/discover/publications/1663/2013-july/_assets/docs/firsts.pdf
https://www.osti.gov/biblio/5746675-where-everybody-account-fermi-question
Details and Facts:
https://mason.gmu.edu/~rhanson/greatfilter.html
https://www.technologyreview.com/2008/04/22/220999/where-are-they/
https://asd.gsfc.nasa.gov/blueshift/index.php/2015/07/22/how-many-stars-in-the-milky-way/
https://exoplanets.nasa.gov/discovery/exoplanet-catalog/
https://www.scientificamerican.com/article/when-did-eukaryotic-cells/
https://naturalhistory.si.edu/education/teaching-resources/life-science/early-life-earth-animal-origins
https://www.britannica.com/topic/Homo
https://www.britannica.com/topic/Homo-sapiens/Origin
Scienfic Papers:
https://www.ncbi.nlm.nih.gov/books/NBK9841/
https://ui.adsabs.harvard.edu/abs/2016AsBio..16..359F/abstract
https://arxiv.org/abs/1806.02404
https://doi.org/10.2307/2709100
https://doi.org/10.1089/ast.2014.1247
Books:
https://openstax.org/details/books/astronomy
“Intelligent Life in the Universe.” by I. S. Shklovskii & Carl Sagan (1966)
https://books.google.com/books/about/Intelligent_Life_in_the_Universe.html?id=QrnoPwAACAAJ
“Is Anyone Out There?” by Frank Drake & Dava Sobel (1992)
https://books.google.com/books/about/Is_Anyone_Out_There.html?id=DYXvAAAAMAAJ
“If the Universe Is Teeming with Aliens … WHERE IS EVERYBODY?: Fifty Solutions to the Fermi Paradox and the Problem of Extraterrestrial Life” by Stephen Webb (2002)
https://books.google.com/books/about/If_the_Universe_Is_Teeming_with_Aliens_W.html?id=Kp6g79LuKWEC
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LINKS TO COMMENTS
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IMAGE CREDITS
Heavy Bombardment (Bennu’s Journey):
https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=20220
Los Alamos ID Badge Photos:
https://www.lanl.gov/about/history-innovation/badges.php
Herbert York:
https://commons.wikimedia.org/wiki/File:Herbert_York.jpg
Frank Drake:
https://repository.aip.org/islandora/object/nbla%3A291451
Source