If nations A and B sit down to agree to get rid of their nukes nation A might still keep a few nukes hidden in abandoned salt mines somewhere, so that when nation B complies and gets rid of its nukes, nation A can pull out its hidden nukes and extort anything it wants from nation B.
Getting rid of all nuclear bombs is no more possible than getting rid of all vacuum cleaners, or of any other technology.
We cant go back.
All we can do is try to slow down nuclear proliferation. And cross our fingers.
The odds of a nuclear exchange breaking out any given year is extremely low. But its like throwing a thousand sided dice with only one side having the bad outcome. Every year we have to throw the dice. So eventually the undesired side has to come up. And as more and more nations get nukes the more times the dice gets thrown. Eventually there will be a little white nuclear war here or there. The kind in which ….maybe... only a 100 million people die (comparable to the death toll of WWII), and the human race will just stagger on. And we wont get something like the feared all out nuclear exchange that was possible between the two superpowers during the decades of the Cold War in which many hundreds of millions, or billions would die, and world civilization would collapse.
A kilodeath here, and a megadeath there, but somehow we will avoid gigadeath. That's my "optimistic" take on it! ![Laughing :lol:](./images/smilies/icon_lol.gif)