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By Jo Twist
BBC News science and technology reporter
In 2020, whipping out your mobile phone to make a call will be quaintly passé. By then phones will be printed directly on to wrists, or other parts of the body, says Ian Pearson, BT's resident futurologist.
It's all part of what's known as a "pervasive ambient world", where "chips are everywhere".
Mr Pearson does not have a crystal ball. His job is to formulate ideas based on what science and technology are doing now, to guide industries into the future.
Inanimate objects will start to interact with us: we will be surrounded - on streets, in homes, in appliances, on our bodies and possibly in our heads - by things that "think".
http://news.bbc.co.uk/1/hi/technology/4059011.stm