Start with a command: “SmartGrill, sear some radicchio.” The grill selects a recipe from its online database and fires up the burners to the right temperature. It tells you where to place the food, and then automatic temperature-sensing probes work with motorized gas valves to ensure everything cooks evenly. When done, the grill shuts off the burners and sends you a text message. In time, its brain, an embedded microprocessor, will also learn your preferences. So if your idea of medium-rare is a little pinker than average, that’s exactly what you’ll get.