At the dawn of the nuclear age, its principal architect, Robert Oppenheimer, spoke of a stable standoff between nuclear powers. They would be held back from attacking one another by mutual fear, instead circling endlessly “like a pair of scorpions trapped in a bottle.”
Subsequently, political scientist Albert Wohlstetter pointed out that this stability would be lost if a situation arose in which advantage accrued to the first to attack. Then deterrence would at best be “a delicate balance of terror.”