“Imagination cannot easily transcend the boundaries of the present, and one reason for this is that it must borrow machinery that is owned by perception. The fact that these two processes must run on the same platform means that we are sometimes confused about which one is running. We assume that what we feel as we imagine the future is what we’ll feel when we get there, but in fact, what we feel as we imagine the future is often a response to what’s happening in the present.”