What are the arrows of time? How is the direction of time defined? You probably have an intuitive idea of what it means to move backwards versus forwards in time, but formally defining the direction of time is more difficult. Although various views on the direction of time exist, Stephen Hawking identifies three distinct arrows of time: thermodynamic, psychological, and cosmological. Read on to learn about the arrows of time from various perspectives.
The Arrows of Time Explained by Stephen Hawking
