Each person allocates his or her limited attention either by focusing it intentionally like a beam of energy—as do E. and R. in the previous examples—or by diffusing it in desultory, random movements. The shape and content of life depend on how attention has been used. Entirely different realities will emerge depending on how it is invested. The names we use to describe personality traits—such as extrovert, high achiever, or paranoid—refer to the specific patterns people have used to structure their attention.
