I guess I was not clear enough in defining what I was talking about. While it is possible to stretch the definition of “nuclear world war” to include WW2 and Little Boy and Fat Man were certainly strategic weapons at their time, this is not at all what I meant. I was talking about modern strategic weapons, i.e. MIRVed ICBMs shot from hardened silos or ballistic missile submarines, used by a modern nuclear superpower to defeat a near peer opponent. I.e. the scenario Petrov faced.
If e.g. the US in Petrov’s time had managed to pull off a perfect nuclear first strike (a pretty bold assumption), destroying the whole USSR’s and Chinese nuclear triad without any counter strike at all, the economic (supply chain disruption, Europe and Middle East overrun with refugees...) and political repercussions (everyone thinks the US is run by complete psychopaths) alone would have been enough to ensure in expectation a precipitous drop in quality of life for nearly all US citizens, including generals and politicans. This is true even if the whole nuclear winter idea is complete bunk.
I guess I was not clear enough in defining what I was talking about. While it is possible to stretch the definition of “nuclear world war” to include WW2 and Little Boy and Fat Man were certainly strategic weapons at their time, this is not at all what I meant. I was talking about modern strategic weapons, i.e. MIRVed ICBMs shot from hardened silos or ballistic missile submarines, used by a modern nuclear superpower to defeat a near peer opponent. I.e. the scenario Petrov faced.
If e.g. the US in Petrov’s time had managed to pull off a perfect nuclear first strike (a pretty bold assumption), destroying the whole USSR’s and Chinese nuclear triad without any counter strike at all, the economic (supply chain disruption, Europe and Middle East overrun with refugees...) and political repercussions (everyone thinks the US is run by complete psychopaths) alone would have been enough to ensure in expectation a precipitous drop in quality of life for nearly all US citizens, including generals and politicans. This is true even if the whole nuclear winter idea is complete bunk.