Julian Barbour is the author of The Janus Point: A New Theory of Time (Basic Books, 2020). |
“What then is time? If no one asks me, I know what it is. But if I wish to explain it to him who asks the question, I do not know.”– Saint Augustine, ca. 399 CE.
I’ve always been fascinated with time and the concept of time’s passage. Who isn’t? All right, I’ll even admit to being obsessed with time, but not in any detrimental or depressing way, just as on ongoing subject of dreams, contemplation, speculation, wonderment, awe, and as perhaps the most ideal subject for so many kinds of art, music and poetry. It’s at the very beating aesthetic heart of what the French critic Gaston Bachelard called the dialectics of duration. As a kid, I recall being quite certain that time doesn’t really move forward at all, from past to present to future, but rather backwards, filling the present with potential energy and emptying itself out in the past as the expended kinetic energy of history. Every kid knows that time must work backwards until it stops, since otherwise we’d be trapped in an endless loop going nowhere. Most kids, however, tend to grow up, I suppose.