No, that's almost certainly incorrect. Here's a decent summary of current research: https://www.lesswrong.com/posts/sT6NxFxso6Z9xjS7o/nuclear-war-is-unlikely-t

No, that's almost certainly incorrect. Here's a decent summary of current research: https://www.lesswrong.com/posts/sT6NxFxso6Z9xjS7o/nuclear-war-is-unlikely-to-cause-human-extinction https://www.lesswrong.com/posts/sT6NxFxso6Z9xjS7o/nuclear-wa... It would be an unthinkable catastrophe, but almost certainly not the end of the human race (and likely not even modern civilization).