In "Exhalation," an alien scientist makes a shocking discovery with ramifications that are literally universal. In "Anxiety Is the Dizziness of Freedom," the ability to glimpse into alternate universes necessitates a radically new examination of the concepts of choice and free will.Including stories being published for the first time as well as some of his rare and classic uncollected work, Exhalation is Ted Chiang at his best: profound, sympathetic—revelatory.