The mythology of the Wild West suggests the person who draws first in a gunfight is usually the first to get shot, and new findings now hint at a reason why this might happen. Inspired by Hollywood cowboy movies, Nobel Laureate atomic physicist Niels Bohr once conjectured why, during a duel, the gunslinger who drew first was the one to get shot — the intentional act of drawing and shooting is slower to carry out than the "quick draw" response to another gun. Anecdotal reports note that Bohr tested his idea using toy pistols, with the reactive Bohr apparently winning...