A future in which it is difficult to tell man and machine apart could soon become reality, scientists say, after recent robotic breakthroughs in Japan. Already computers have surpassed human ability, leading Japanese roboticist Hiroshi Ishiguro told AFP. The head is very fragile — it goes as carry-on baggage. Robots already perform a wide variety of tasks in Japan: they cook noodles, help patients undergo physiotherapy and have been used in the clean-up after the 2011 nuclear meltdown at Fukushima.