Alexis Madrigal investigates how lasers have remade our cemeteries:
As we circumnavigated the plots, we began to see a pattern. Shiny, black headstones lined vast tracts of lighter gray headstones "almost like stitching," Sarah observed. These headstones were different from the ones that had come before them. Not only were they a different color and texture, they also featured photorealistic portraits of the people buried underneath them. They were a new breed of monument. One look at them could have told you that no human hand had chiseled those drawings in the stone.
(Photo by Alexis)