Robots puttering around Dubai’s hi-tech Expo site could be a sign of things to come for the Gulf, where new cities are being built from scratch with artificial intelligence at their core. The 5G-enabled Expo, covering an area twice the size of Monaco, will remain as a “city of the future” and tech industry hub, Expo’s chief told AFP before its grand opening last month. But the $7 billion project, featuring robots that greet visitors and can be used to order food, is not alone in the wealthy Gulf, where petro-dollars are being invested heavily in a post-oil future. Neighbouring Saudi Arabia is …

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