When disaster leaves only a handful, can a civilization restart? We explore genetic bottlenecks, colony failure, and the limits of survival.

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Credits:

Genetic Bottlenecks – How Few People Can Start a World? Or Restart One?

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

10:56 Restoration

19:26 Practical Engineering