And he’s right, it’s not them. It’s the team from the National University of Singapore. Even before their demonstration has started, while they sit huddled around a laptop with their backs to their drone, it suddenly leaps off the stage and lurches sickeningly, rotors first, into the water. The crowd around me runs over to gawp at the wreckage through the – suddenly much appreciated – protective netting that separates the audience from the drones, as the distraught team gaze on in disbelief. We never get to see how what their ‘Fully autonomous cargo transportation unmanned helicopter system’ consists of exactly.