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The Moral Virologist Greg Egan Out on the street, in the dazzling sunshine of a warm Atlanta morning, a dozen young children were playing. Chasing, wrestling, and hugging each other, laughing and yelling, crazy and jubilant for no other reason than being alive on such a day. Inside the gleaming white building, though, behind double- glazed windows, the air was slightly chilly - the way John Shawcross preferred it - and nothing could be heard but the air-conditioning, and a faint electrical hum. The schematic of the protein molecule trembled very slightly. Shawcross grinned, already certain of success. As the pH displayed in the screen's top left crossed the critical value - the point at which, according to his calculations, the energy of conformation B should drop below that of conformation A - the protein suddenly convulsed and turned completely inside-out. It was exactly as he had predicted, and his binding studies had added strong support, but to see the transformation (however complex the algorithms that had led from reality to screen) was naturally the most satisfying proof. He replayed the event, backwards and forwards several times, utterly captivated. |
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