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

EPISODE · May 3, 2026 · 24 MIN

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

from Science & Futurism with Isaac Arthur

When disaster leaves only a handful, can a civilization restart? We explore genetic bottlenecks, colony failure, and the limits of survival.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Surviving a New Ice Age: https://nebula.tv/videos/isaacarthur-surviving-a-new-ice-ageCheck out Practical Engineering: https://nebula.tv/practicalconstruction?ref=isaacarthur🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/🌐 Visit our Website: http://www.isaacarthur.net❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Genetic Bottlenecks – How Few People Can Start a World? Or Restart One?Written, Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty ImagesChapters0:00 Intro10:56 Restoration19:26 Practical EngineeringSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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

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