4.8 • 739 Ratings
🗓️ 21 November 2019
⏱️ 35 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.nebler.tv slash Isaac Arthur and use my code, Isaac Arthur. |
0:20.2 | This episode is sponsored by Audible. |
0:23.6 | The galaxy appears to be rich in worlds and resources ripe for the taking, |
0:28.5 | but it doesn't appear that anyone has done so. |
0:31.0 | Could it be that some tragedy eventually befalls all those who try? |
0:37.7 | So today we return to the Fermi Paradox Great Filters series for a look at late filters, |
0:43.9 | challenges that might prevent civilization such as ours from ever moving out into the galaxy |
0:48.8 | and thus preventing us from detecting them. |
0:52.0 | The Fermi Paradox is the big question of how space can be so huge and ancient, and yet |
0:57.3 | apparently not be populated by any civilization we can detect. |
1:01.5 | In this series, we've looked at one popular solution to the Fermi paradox, that the pathway |
1:06.5 | from potential habitable world to an advanced civilization like ours is far more difficult |
1:12.3 | than we often think, and that many hidden perils, what we call filters, might lower |
1:17.4 | the odds at each step of progress. |
1:20.3 | Any potential forming paradox solution has to explain why we see a universe empty of advanced |
1:25.2 | civilizations that we can detect, using the methods |
1:28.0 | we have now. |
1:29.7 | It could be that life rarely emerges or that life emerges but rarely gets more advanced than |
1:34.5 | Al J. |
... |
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