Our lives are catered to by various virtual assistants - think: iPhone's Siri - typing our texts, predicting our words and navigating us about our day.
According to a survey by the Financial Times, half of computer programmers who took part expect machines to outsmart humans by 2040, given the current pace of artificial intelligence. 90% surveyed expected that this 'superintelligence' would be realised by 2075.
"The development of full artificial intelligence could spell the end of the human race," said Stephen Hawking in 2014. "It would take off on its own, and redesign itself at an ever increasing rate. Humans, who are limited by slow biological evolution, couldn't compete, and would be superseded."