Technology
Nuclear Deterrence and the Stability-Instability Paradox
Quick fact
During the Cold War, the US and the Soviet Union never fought each other directly, but they fought in Korea, Vietnam, Afghanistan, and many other places—killing millions in 'limited' wars that the fear of nuclear retaliation paradoxically made possible.
Why this is interesting
Weapons that are too powerful to use shouldn't be used in any fight, right? Yet the countries that have them still fight—just not the way you might expect.