After hiroshima and nagasaki, the soviet union, britain, france, china, etc didn't say, "wow that's destructive, lets have less of that". They said, "wow that's destructive" and "we need some".
I think if we did that openly and showed the world the destructive power of nukes every decade, more and more nations would want to get it and we'd have more nuclear powers.
There's plenty of incentive to want the bomb.
I feel we as a species need to get better at weighing up the costs of our action or inaction, making hard choices rather than everyone just fighting blindly for one half of the equation. /rant
I think it all comes down to the fact that we don't trust each other at scale. Because I can't trust that you'll approach searching for solutions honestly, that you'll optimize globally, I have to fight for my own interest at expense of rationality. For the same reason, you end up fighting for yours.
It's ridiculously wasteful, and I think most of humanity's problems stem from it. I can't think of a way out of it, at scale.
Under the linear-no-threshold dose model we'd expect several death from fallout induced cancer per test. But on the other hand we know that the linear-no-threshold model is false. If you give some fruit flies a 50 REM dose of xrays all at once they get cancer. If you give them 50 REMs spread out over the course of a month they don't. But we don't really know what the actual model is very well so that's not a risk I'd be happy to take.
Just think of how many Indian and Pakistani lives have been saved because the two countries stepped back when shit was about to get real. Like, three times now. All because of nukes. Unless one of them truly commits to invading and losing millions of lives, their wars are guaranteed to peter out as border skirmishes.
People who thought it would be tremendously convenient [0] if limited nuclear war was possible generally wanted to remove the taboo between large conventional explosions and small nuclear explosions, and so would support programs like the US "Project Plowshare" [1] and the Soviet "Nuclear Explosions for the National Economy" [2] which used nuclear weapons for mining and civil engineering.
With that said, one might very well argue that we are no longer in the cold war, and that our policies no longer need to be guided by the prospect of Soviet tanks entering France. And whether a once-per-decade reminder explosion would erode or enhance the taboo against their use in war.
[0] The WW2 Red Army had fielded more troops than the entire male population of France so France could not win a conventional war. [1] https://en.wikipedia.org/wiki/Project_Plowshare [2] https://en.wikipedia.org/wiki/Nuclear_Explosions_for_the_Nat...