At the airport in Denver this morning, after we’d parked our vehicle in the long-term lot, had rode the shuttle to the terminal from which our flight to LaGuardia was scheduled to depart, had made our way through security and had found our gate and were sitting nearby, waiting to board, A. wandered off to use the restroom, so that I was alone for a few minutes and could think of nothing to do but look at my phone, though because I’d zippered it in my backpack, and couldn’t be bothered to retrieve it just then (as I hadn’t slept much in the night and was tired), I looked instead at the people who were around me, in various states of attention and repose, and began to imagine things about them, based on what I could see, and to arrive at conclusions that may or may not have been true (and likely were not), though I wasn’t aware that I was doing this at first, and in fact might have continued unaware had A. not returned from the restroom and, seeing my face, before I realized she was there, asked me in a funny way what I was thinking about.