Most of the time in my work, I begin with the answers, with an idea of the results. I suspect that something is true and then I work toward that suspicion, experimenting, tinkering, until I find what I am looking for. The ending, the answer, is never the hard part. The hard part is trying to figure out what the question is, trying to ask something interesting enough, different enough from what has already been asked, trying to make it all matter.

But how do you know when you are nearing a true end instead of a dead end? How do you finish the experiment? What do you do when, years into your life, you figure out that the yellow brick road you’ve been easing down leads you directly into the eye of the tornado?