There are five photographs on my wall: one of a street in Memphis, one of the Grand Canyon, one of the ocean next to the Pacific Coast Highway, one of a man’s arm silhouetted by the fireworks at a Metallica concert in San Francisco, and one of a woman in a blue dress, crouching, embracing a yellow lab in the parking lot of a cafe in the middle of Texas. With good luck and some planning, I’ll be able to revisit the first three of these scenes, but no amount of either effort or fortune will allow me to re-experience the latter two. If I were able to interrogate the photos themselves, I’d ask those last two: who is the man on the other end of that arm? And I’d ask: what is the woman looking at? And: where is that dog now?