Isla didn’t consider herself much of an outdoor person, but after five layoffs and a breakup, she found herself in a drone warehouse at the border of the barren wasteland known as Robot Country. She consulted the map on her tablet. To the west was the Gila National Forest. So, trees. She clicked on the forest icon and up popped some names of trees. Arizona sycamore, Douglas fir, Aspen. To the south was desert and the Mexican border. To the east was an even more extreme kind of desert, the White Sands National Monument, where atomic bombs had been tested in the previous century.