4.8 • 739 Ratings
🗓️ 29 August 2019
⏱️ 25 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 add free, plus hours of bonus content, |
0:15.1 | check out go.nebola.tv slash Isaac Arthur and use my code, Isaac Arthur. |
0:20.3 | This episode is sponsored by Brilliant. |
0:23.6 | Science fiction and fantasy loves to show us brave archaeologists and tomb raiders uncovering |
0:29.7 | some ancient ruins of a lost civilization. |
0:32.9 | But one day, there might be whole civilizations devoted to it. |
0:55.4 | Yeah. One day, there might be whole civilizations devoted to it. One of the most popular plots in science fiction is where our brave adventurers encounter a ruined ship, typically of some ancient and long-dead alien race or xeno-archologists hunting among such ruins. |
1:02.5 | These make for great stories, but lack an element of realism in the context of the Fermi |
1:07.5 | paradox and galaxy spanning civilizations. |
1:11.2 | You need some serious handwaves or plot contrivances to explain not why a ship got abandoned |
1:16.6 | or planetary civilization fell or went extinct, but why nobody else found it or resettled |
1:21.9 | such a world almost immediately on astronomical timelines. |
1:27.3 | Analogies to our own lost ships and civilizations don't really work out well in space or |
1:32.4 | by the capabilities of space-faring civilizations. |
1:36.3 | These days when a ship sinks, we know where and can go hunt that thing down, our ancestors |
1:41.6 | couldn't go scuba diving to reclaim their lost treasures. |
1:45.4 | We also want to keep in mind that a lot of the archaeological past is either composed |
1:49.9 | of trash our ancestors didn't care about or repurposed, like using broken pottery in following |
1:56.0 | rounds of construction and repair, or had cultural or religious significance. |
2:01.3 | We don't find abandoned tracts of useful land, just abandoned tombs or temples and the like, |
... |
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