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A comment on Nuclear war is unlikely to cause human extinction?. Parent comment

Re:Nuclear war is unlikely to cause human extinction? by goatlover on Thursday November 12, 2020 @10:00PM (#25078313)
The thing is 70,000 wouldn’t get launched because both sides would be targeting nuclear facilities in a first strike.
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Re:Nuclear war is unlikely to cause human extinction? by greedo on Friday November 13, 2020 @11:57AM (#25084271)
Ok, say 10% fails upon launch or fails to detonate. Now you're down to 63K per side. Say each side reserves 50% for targets of opportunity, they've each launched 31K warheads. Goodbye civilization.

The UN reports that there are currently 580 cities in the world with populations greater than 1M. Doesn't take many warheads or launchers to wipe those out.

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