Perhaps a lunatic was simply a minority of one. At one time it had been a sign of madness to believe that the Earth goes round the Sun; today, to believe the past is inalterable. He might be alone in holding that belief, and if alone, then a lunatic. But the thought of being a lunatic did not greatly trouble him; the horror was that he might also be wrong.
Everyone watched, wondering if this could be the same lunatic who'd nearly berthed his ornithopter in the restaurant. I swallowed, for it seemed he was headed straight for my table. He pulled off his helmet and a mass of dark auburn hair spilled out. Off came the goggles, and I was looking at the beaming face of Kate de Vries.