Time marches on. But we’re not exactly sure why. under the quantum laws that govern the subatomic world, time could flow in either direction. The famous second law of thermo- dynamics – i.e. over time, entropy (disorder) increases – argues for a direction of flow, but this doesn’t hold up against our observations of a highly ordered universe. Julian Barbour will discuss these problems and talk about his latest work on gravity and the arrow of time.
Dr. Julian Barbour is
a British theoretical physicist wand visiting professor at the uni- versity of Oxford, and one of the leading international thinkers
on the topic of quantum gravity. His 1999 book The End of Time advanced the radical notion of timeless physics: Time is an emergent property of the universe.