If anyone would have said in 1950 that there will be no nuclear exchange in the next 75 years, they would likely have been thought unserious. ...which is both a case of it being nice "everyone" were wrong for once, and raises fascinating questions about which obvious truths of today will be false.
honestly, the fact that we have made it through the atomic age *without* another use of nuclear weapons since 1945 is a miracle we don't fully appreciate