Become a
Friend of Aeon

Ideas can change the world

Aeon is a registered charity committed to the spread of knowledge and a cosmopolitan worldview.
But we can’t do it without you.

Aeon is a registered charity committed to the spread of knowledge and a cosmopolitan worldview. Our mission is to create a sanctuary online for serious thinking.

No ads, no paywall, no clickbait – just thought-provoking ideas from the world’s leading thinkers, free to all. But we can’t do it without you.

Become a Friend for $5 a month or make a one-off donation
Gene Tracy
Chancellor Professor and Chair of Physics, William & Mary

Gene Tracy is director of the Center for the Liberal Arts at William & Mary in Virginia. His latest book is Ray Tracing and Beyond: Phase Space Methods in Plasma Wave Theory (2014).

Essays
2
Conversations
19
Essay/Physics

A science without time

From past to present, into the future: the flow of time is central to human experience. Why isn’t it central to physics?

Gene Tracy

Essay/History of Ideas

Sky readers

For most of human history, the stars told us where we were in space and time. Have we forgotten how to look up?

Gene Tracy

Recent conversations