Tackling some of humanity's oldest questions along with new quandaries only he could imagine, these stories will change the way you think, feel, and see the world. They are Ted Chiang at his best: profound, sympathetic, revelatory.

Ted Chiang tackles some of humanity's oldest questions along with new quandaries only he could imagine.

In "The Merchant and the Alchemist's Gate," a portal through time forces a fabric seller in ancient Baghdad to grapple with past mistakes and second chances. 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.