LONDON – Suddenly a robotized, automated economic reality is moving off the science fiction pages and into daily life. The growing use of unmanned battlefield drones is encouraging the growth of pilotless commercial aircraft — the first ever flew in British airspace last month. Google’s driverless car is completing ever more trials ever more successfully: the world’s major car companies are all hot in pursuit, working on their own prototypes of their own versions. The automated checkout at supermarkets is becoming as familiar as bank cash machines. From staff-free ticket offices to students who can learn online, it seems there is no corner of economic life in which people are not being replaced by machines.