The Fermi Paradox: Galactic Disasters

Science & Futurism with Isaac Arthur

Isaac Arthur

Spacecraft, Scifi, Engineering, Interstellar Travel, Civilizaiton, Space Station, Future, Future Philosophy, Artificial Intelligence, Technological Future, Cybernetics, Human Civilizaiton, Sci Fi, Space Megastructures, Astronomy, Megastructures, Energy Abundance, Physics, Space, Space Infrastructure, Technology, Futurism, Genetics, Starship, Post Scarcity, Transhumanism, Long Term Future, Space Colonization, Spaceship, Future Of Humanity, Space Industry, Science

4.9 • 781 Ratings

🗓️ 20 August 2020

⏱️ 30 minutes

🔗️ Recording | iTunes | RSS

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Summary

One possible solution to the Fermi Paradox, the big question of where all the aliens are, is that some ancient galactic disaster wiped out extraterrestrial civilizations, and we're among the first to arrive back on the spacefaring scene. Watch the Video Version: https://youtu.be/ScRIcc1sKb8 Start listening with a 30-day Audible trial and your first audiobook is free. Visit http://www.audible.com/isaac or text "isaac" to 500-500. 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 Listen or Download the audio of this episode from Soundcloud: Episode's Audio-only version: https://soundcloud.com/isaac-arthur-148927746/the-fermi-paradox-galactic-disasters Episode's Narration-only version: https://soundcloud.com/isaac-arthur-148927746/the-fermi-paradox-galactic-disasters-narration-only Credits: The Fermi Paradox: Galactic Disasters Science & Futurism with Isaac Arthur Episode 252; August 20, 2020 Written, Produced, and Narrated by Isaac Arthur Editors: Darius Said Jerry Guern Cover Art: Jakub Grygier https://www.artstation.com/jakub_grygier Graphics: Mihail Yordanov Music Courtesy of Epidemic Sound http://epidemicsound.com/creator See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Transcript

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0:00.0	Hello, SFIA audio listeners. In this month's Nebula exclusive, Big Alien Theory,
0:05.0	we're asking the reason alien civilizations might be rare is because most aliens are huge.
0:10.0	To hear it and every episode early and add free, plus hours of bonus content,
0:15.0	check out go.nebola.t.v.tv slash Isaac Arthur.
0:20.0	This episode is sponsored by Audub.
0:23.6	It's possible that the reason we appear to be alone in this galaxy
0:26.7	is because we're the first life forms to emerge here,
0:29.8	but it's also possible that we're the first to re-emerge here.
0:43.1	So today we are returning to our Fermi Paradox series to consider the idea of galactic disasters, natural or artificial events that might prevent life from developing or wipe out civilizations.
0:50.4	If you are new to the Fermi Paradox, it is essentially the notion that the universe is a vast
0:54.7	and ancient place, probably containing billions of billions of planets with conditions
0:59.2	parallel to early Earth, and thus we would expect to see a ton of intelligent life out
1:03.3	there but we don't seem to see any.
1:05.8	This apparent paradox has many proposed solutions and the one we'll examine is that something
1:10.4	or someone might
1:11.5	have killed off life in our galaxy at some point in the past, and that Earth is the first
1:15.9	or among the first places where life has returned.
1:19.3	So we'll be considering a number of potential galactic disasters today and also some
1:23.3	extra-galactic, universal, and even multiverse or disasters.
1:27.8	Let's discuss first, what would it take to sterilize just a planet of our life?
1:32.7	The most heat-resistant known life forms on Earth are microbes that can survive at 130
1:37.0	centigrade for no more than a couple of hours, but it's still rather tricky because there
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