virtually everyone in the Wehrmacht received Pervitin as part of their rations, methamphetamine tablets that the troopers used to stay awake for weeks on end, fighting in a deranged state, alternating between manic furore and nightmarish stupor, with overexertion leading many to suffer attacks of irrepressible euphoria. “An absolute silence reigns. Everything becomes alien and insignificant. I feel completely weightless, as if I were floating above my own airplane,” a Luftwaffe pilot wrote years later, as though he were recollecting the silent raptures of a beatific vision rather than the dog days of war.

— Benjamin Labatut, When We Cease to Understand the World