“The very concept of time travel makes no sense, since time doesn’t flow. The fact that we think time passes is just an accident of our nervous systems—of the way things look to us. In reality, time doesn’t pass; we pass. Time itself is invariant. It just is. Therefore, past and future aren’t separate locations, the way New York and Paris are separate locations. And since the past isn’t a location, you can’t travel to it.”
