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Robots already outperform us in many ways. Machines perform tasks we physically cannot and carry out calculations in milliseconds that take the brightest of us years to do. Anil Seth, Professor of Cognitive Neuroscience at the University of Sussex, UK, explores the idea of artificial intelligence and how we would know if robots are – or become – conscious.

(Image: Robot, Credit: ³ÉÈË¿ìÊÖ.)