I ate my breakfast, checked my email, and stood up to head to my gate. As I did, I looked down at the small section of my life situated at that airport dining table: my new Nike Air Max sneakers, my cashmere swacket (that’s 50% jacket, 50% sweater, 100% cozy), my almost-too-soft-to-be-taken-outside leather duffel bag, and my iPhone. All of these objects were central to me – I felt like they defined me – and it was my iPhone that was at the core of it.