Easy to say now, looking back on history and seeing that there wasn't a civilization ending nuclear war. I wonder what the odds were of that happening? Did we

Easy to say now, looking back on history and seeing that there wasn't a civilization ending nuclear war. I wonder what the odds were of that happening? Did we get lucky and eke by that period with 1% odds? Or was there only ever a very very small chance of a nuclear holocaust, and people were worried about nothing? The answer to that question is what I would need to know about whether it is reasonable to nuke 10M people.