Germany, born early seventies. Background, there was a strong “never again” sentiment after WW2 and to that end we were educated about the horrors of war from an early age. WW2 and the Third Reich was discussed in school and also very present in living memories of grandparents and their friends.

It was made very clear to us where the first nukes would drop (Germany) and who would drop them (Germans). Flexible response was explained to us, the Nato strategy of using nukes first, as well as MAD. We were given estimated times from sirens blaring to explosion. We visited a bunker, and we were imagining nuclear hellscapes and asking ourselves if one should even try to enter a bunker to try to survive. Pershing II were discussed and MIRV, which were new technologies at the time.

Sonic booms from military jets were common, we would respond to that with “Russians are coming”. Not fear, but fatalism was the usual response, and a large number of young men would reject draft and opt for civilian service, wanting to do something productive during service instead of training to get pulverized in the first wave.

Then came Gorbatschow, and Reagan would still pursue his star wars programme, which left us scratching our heads.

Thanks, I was using thermonuclear wrong.

Japan got struck twice with thermonuclear bombs in world war 2, in 2 cities named Hiroshima and Nagasaki. Look it up. They are very much against nuclear arms in general since then.

There are many factors at play.

Survivability is much higher. A lot of the deaths are attributable to secondary opportunistic infections that are now treatable with antibiotics, which did not exist at the time. We now have a plethora of treatments that did not exist at the time, for example many people were saved from death by covid by giving extra oxygen for just a few days. That would have helped h1n1 victims too.

I think your third point is key, one thing Microsoft does very well is backwards compatibility. We run programs from the 90s in production. It is a nightmare of APIs layered upon APIs, but the programs will run.