Our experience of the temporality of things seems to be an experience of a radically asymmetric feature of the world. Although we do know some things about what the future will be like, we have an access to past events that is not given to us of events in the future. We take ourselves as having memories of the past but not of the future and as having records of the past but not of the future. In our explanatory accounts of what happens in the world, we explain present and future by reference to what happened in the past, but we typically do not explain the past by referring to the future. We take it that there is causation in the world—that events determine one another to occur. But, intuitively, we think of causation and determination...