But we ignored it. For this was how the AutoHouse started, wasn’t it, with thermostats that sent to Aunt Nettie first data, then videos? Then came DroneDeliverers and FridgeStockers, KidTrackers and RoboSitters, ElderHelpers and YardBots, all of which reported to Aunt Nettie as dutifully as any spy network—recording our steps, our pictures, our relationships, and (back when

