The myopia theory was first suggested by psychologists Claude Steele and Robert Josephs, and what they meant by myopia is that alcohol’s principal effect is to narrow our emotional and mental fields of vision. It creates, in their words, “a state of shortsightedness in which superficially understood, immediate aspects of experience have a disproportionate influence on behavior and emotion.” Alcohol makes the thing in the foreground even more salient and the thing in the background less significant. It makes short-term considerations loom large, and more cognitively demanding, longer-term considerations fade away.