We say that the processes going on in the world about us are asymmetric in time or display an arrow of time. Yet this manifest fact of our experience is particu

Why is the future so different from the past? Why does the past affect the future and not the other way around? What does quantum mechanics really tell us about

While experience tells us that time flows from the past to the present and into the future, a number of philosophical and physical objections exist to this comm

The asymmetry of natural phenomena under time reversal is striking. Here Zehinvestigates the most important classes of physical phenomena that characterize the

"An accessible and engaging exploration of the mysteries of time." -Brian Greene, author of The Elegant Universe Twenty years ago, Stephen Hawking tried to expl