What Is Time?
I think the flow of time is not part of the fundamental structure of reality,” theoretical physicist Carlo Rovelli tells me. He is currently working on a theory of quantum gravity in which the variable of time plays no part. And throughout our conversation, I’m trying to get my mind around the idea that even though the universe is made up of “events,” as Carlo explains, a single interval between two events can have different values. There is no central clock, its hands ticking a steady beat for the universe to march along to, moving in one direction from the past into the future.
The prospect that our experience of time may not correspond to an underlying reality has fascinated me for as long as I can remember, as the idea connects
You’re reading a preview, subscribe to read more.
Start your free 30 days