4.8 • 739 Ratings
🗓️ 15 March 2020
⏱️ 22 minutes
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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, check |
0:15.0 | out Go.nebola.tv slash Isaac Arthur and use my code, Isaac Arthur. |
0:20.0 | This video is sponsored by CuriosityStream. |
0:23.3 | Get access to my streaming video service, Nebula, when you sign up for CuriosityStream |
0:28.1 | using the link in the description. |
0:31.2 | We often worry about Earth getting overcrowded, but in truth it's not about how much space |
0:36.0 | we've got, but how much energy and |
0:38.0 | resources we need for those people. |
0:40.3 | And if we've got those, we might be able to support far more people than today and in far |
0:44.6 | more comfort than now. We have a concept we discuss sometimes on the channel called an Acominopolis, a planet-wide |
0:59.6 | city, and these show up in fiction fairly often and usually as capitals of vast interstellar |
1:05.1 | empires, like Khorassant from Star Wars or Trant or from Asmos Foundation series or Earth itself in the Warhammer |
1:12.2 | 40K setting. |
1:14.0 | They are also often depicted as having a trillion people on them or more. |
1:18.3 | I thought today though we'd try to ask ourselves what it would take to have a trillion |
1:21.9 | people on Earth and what the Earth would look like if it did. |
1:25.9 | The first and most critical point to hit though is that a trillion people, while more |
1:29.9 | than a hundred times as many folks as are alive now, and indeed 10 times as many people as have |
1:34.7 | ever lived by most estimates, would not even begin to require a city that covered the whole |
1:39.8 | planet. |
... |
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