alt Hacker News> I don't think there's any question at this point that it's in Nordic self interest to develop a nuclear deterrent.
Yes, it definitely is.
> The worst change is of course the fact that the odds of a complete societal collapse have increased dramatically.
A nuke means that anyone who wants to invade you needs to price in a total loss of their largest city as a possible outcome. That is a great disincentive, one that Ukraine probably wishes it had against Russia.
> and the risk of major accidents will increase.
I don't think that's reasonable to say about a bunch of countries getting their first nuke. The concern should be more with countries like the US and Russia that have so many nukes, which they can't possibly use effectively, and don't have the ability to properly maintain.
If every western country had exactly one nuke, the world would probably be much safer than if the US has all of them.
> A nuke means that anyone who wants to invade you needs to price in a total loss of their largest city as a possible outcome. That is a great disincentive, one that Ukraine probably wishes it had against Russia.
It's even more complex than that. If Ukraine responded conventional war with nukes, it can be sure Russia would retaliate with even more nukes, practically extinguishing their statehood.
The equilibrium is reached when the exchange is equally devastating, so the only winning move is attacking first, and only if the attacked won't be able to retaliate. The Cold War never ended, just warmed a little, because it doesn't exist (yet) a guaranteed way to avoid an all-out nuclear retaliation.