The audience burst into applause and hallelujahs. I kept trying to make sense of it, and kept coming up short. Here were people who routinely used their computers to stay in touch with their friends and get the news of the day, people who took weather satellites and lung transplants for granted, people who expected to live lives thirty and forty years longer than those of their great-grandparents. Here they were, falling for a story that made Santa and the Tooth Fairy look like gritty realism.