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Could computers become cleverer than humans and take over the world? Or is that just the stuff of science fiction? Philosophers and scientists at Britain's Cambridge University think the question deserves serious study. A proposed Center for the Study of Existential Risk will bring together experts to consider the ways in which super intelligent technology, including artificial intelligence, could "threaten our own existence," the institution said Sunday. "In the case of artificial intelligence, it seems a reasonable prediction that some time in this or the next century intelligence will escape from the constraints of biology," Cambridge philosophy professor Huw Price said.

" It is, Julio Vildosola concedes, a very big bet. Enlarge This Image Warrick Page for The New York Times Julio and Eva Vildosola and one of their two children. Mr. Vildosola will join a small software company in Cambridge. Readers' Comments Readers shared their thoughts on this article. Read All Comments (269) » After working six years as a senior executive for a multinational payroll-processing company in Barcelona, Spain, Mr. Vildosola is cutting his professional and financial ties with his troubled homeland. He has moved his family to a village near Cambridge, England, where he will take the reins at a small software company, and he has transferred his savings from Spanish banks to British banks."

Sergei Skorobogatov, a postdoc in the Security Group at the Computer Laboratory of the University of Cambridge has written up claims that reprogammable microchips from China contained secret back-doors that can be used to covertly insert code: