Comment Re:Wrong advice for nuclear weapons too (Score 1) 47
We had enough to destroy them 10x over. Being able to do it 20x over doesn't make us any more powerful.
Of course, it does. Your logic only works, if all missiles available will remain operational and reach their targets if launched.
But that's not a valid assumption. Consider, for example, the possibility of one side's launchers — submarines, bombers, mobile launchers, or stationary silos — being disabled and/or taken-over somehow. They aren't run always by the best, unfortunately...
If a mere handful of such installations need to survive for us to remain capable of annihilating the enemy, they would not risk it. But, if our counter-attack requires, say, 50% of them to be operational, the enemy might attempt such an action.
Similar arithmetic applies, if the target's defenses are deemed capable of destroying a significant fraction of incoming missiles. Russia already fears our interception technology, for example, and has its own. If such defenses can take out 90% of the incoming, you do need to fire 10x more. And you better use 20x more to be sure...