4.8 • 739 Ratings
🗓️ 14 July 2019
⏱️ 27 minutes
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0:00.0 | Hello, SFIA audio listeners. In this month's Nebula exclusive, big alien theory, |
0:05.2 | we're asking the reason alien civilizations might be rare is because most aliens are huge. |
0:10.5 | To hear it and every episode early and ad-free, plus hours of bonus content, |
0:15.1 | check out go.nebola.tv slash Isaac Arthur and use my code, Isaac Arthur. |
0:20.0 | This episode is sponsored by Skillshare. |
0:23.6 | Explorers have found life in the deepest, driest, darkest, darkest, hottest, and coldest corners of our planet. |
0:30.8 | As resilient as life seems to harsh environments, maybe we might find some in space, and if not, maybe we can make some. |
0:43.4 | In this episode, we're going to talk about life forms in space, specifically about evolutionary |
0:49.0 | pathways that could lead to life forms that can live there. |
0:53.2 | We will explore more artificial or |
0:55.2 | designed life in future episodes, starting with space whales and bioships this Thursday. |
1:02.6 | At first glance, life evolving in space seems implausible. |
1:07.3 | We tend to think of space as a cold, lifeless vacuum, or perhaps a blazing hot, lethally irradiated, |
1:14.2 | lifeless vacuum. |
1:15.6 | But we've always been tentative about the lifeless part, because life has surprised us in many |
1:21.1 | environments. |
1:22.6 | Extraterrestrial life of even the crudest forms would conform some important theories about how life originated, |
1:29.8 | and it would create a new zeal for searching all the remote corners of our solar system |
1:34.4 | for critters hiding under the ice in rocky crags and among the clouds. |
1:40.5 | I should make a distinction right up front between life originating in a place and adapting |
1:46.0 | to that place. |
1:48.0 | Life can adapt to harsh environments it probably could never have formed in, and any life that |
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