Many people have asked me what I think the odds are of an imminent major US-Russia nuclear war. My current estimate is about the same as losing in Russian roulette: one in six. The goal of this post is to explain how I arrived at this estimate. Please forgive its cold and analytic nature despite the emotionally charged topic; I'm trying not to be biased by hopes, fears or wishful thinking. My estimate is 30% x 80% x 70% ~ 1/6, as illustrated in the figure and explained below.
