In this talk I explore the cosmological revolution introduced by the move to the Copernican system. This revolution was primarily a revolution in our basic understanding of the structure of reality and only secondarily a revolution in astronomy.

The theory of loop quantum gravity suffers from what has come to be known as ``the problem of time,” according to which the world does not include time. In the following, I will highlight dubious assumptions about the nature of time and argue that the problem results not from the Hamiltonian constraint, as is often claimed. Indeed, I will argue that LQG does not include a genuine Hamiltonian — in the sense of time evolution operator — to begin with. As a result, solutions to the problem of time which focus on the putative Hamiltonian constraint are insufficient for locating time within LQG.