One recent Tuesday, at two thirty-seven in the afternoon, I received an email from UPS letting me know that a package had been delivered to my home. Attached, as evidence, was a blurry, off-kilter photograph of a small, slightly dented but otherwise nondescript cardboard box that had been placed on my driveway, next to the garage door. A minute later, at thirty-eight minutes past two, I received a second email announcing the p...