Michael Dertouzos, professor at the Massachusetts Institute of Technology, is a visionary, a technology seer whose words the world treats with reverence. So when he said some months ago that India could add a trillion dollars to its gdp over the next few years without breaking sweat, he caused a stir. A trillion dollars? Yup, that's right, said Dertouzos: all India needs to do is concentrate on handling backroom operations for giant transnationals.