4.8 • 739 Ratings
🗓️ 31 October 2019
⏱️ 22 minutes
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0:00.0 | Hello, SFIA audio listeners. |
0:02.5 | In this month's Nebula exclusive, big alien theory, |
0:05.2 | we're asking the reason alien civilizations might be rare |
0:08.0 | is because most aliens are huge. |
0:10.5 | To hear it and every episode early and ad-free, |
0:13.3 | plus hours of bonus content, |
0:15.1 | check out go.nebola.tv slash Isaac Arthur |
0:17.6 | and use my code, Isaac Arthur. |
0:19.9 | This episode is sponsored by Audible. |
0:24.3 | Scientists may one day figure out how to duplicate a person, body, and mind. |
0:29.2 | No doubt the scientist who perfects the process will be beside himself with joy after he successfully tests it. |
0:48.3 | A staple of science fiction is the notion of copying or cloning living things. Today we'll take a look at what such technologies might actually produce in terms of new |
0:53.3 | opportunities and challenges |
0:55.1 | for humanity and for individuals, and indeed for the very concept of individuality. |
1:01.7 | We might as well start by saying that cloning gets used both to refer to outright duplication |
1:06.4 | of a person either as a full-grown copy or one with the same mind and memories too, as well |
1:12.5 | as in the sense of simply growing a new organism from the DNA of the original. The word itself, |
1:18.2 | clone, is Greek for twig, as in a small branch, and of course you can often take a twig, |
1:24.0 | plant it, and make a new tree from it, as opposed to a pollinated seed. |
1:28.9 | This is a new tree but of identical and singular origin, it hasn't got two parents. |
1:35.1 | We fairly recently learned how to do this with animals, including humans, and it's what |
1:39.5 | most often is being referred to as cloning. |
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