Seraph, the company’s piece for two dancers and robotic hovercraft, is more than just a high-tech lark. “Dodging the dancer, for example, is providing insights into how the quadrotors might best fly through forests when they are doing their day jobs. And the lights sported by the robots … are being adapted to give clues to human road users about a robot driver’s intentions in a project that might put a fleet of robot taxis on the streets of Singapore.”