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Will we all abandon our cars in favour of self-driving taxi apps by the year 2030, or is this pure fantasy? Gary Marcus, professor of psychology at NYU thinks it's possible, even after a number of self-driving Teslas drove into fire trucks, which were stopped on highways. But, he says getting autonomous vehicles to deal with hazards like bad weather or seeing a skateboarder on the street, as a human would, is complex. (Picture: Illustration of electric car; Credit: 3alexd/Getty Images)