Surveys show that many people will wait twice as long for fast food, provided the establishment uses a first-come-first-served, single-queue ordering system as opposed to a multi-queue setup. Anyone who’s ever had to choose a line at a grocery store knows how unfair multiple queues can seem; invariably, you wind up kicking yourself for not choosing the line next to you moving twice as fast. But there’s a curious cognitive asymmetry at work here. While losing to the line at our left drives us to despair, winning the race against the one to our right does little to lift our spirits. Indeed, in a system of multiple queues, customers almost always fixate on the line they’re losing to and rarely the one they’re beating.