And silky smooth, Rolls Royce bureaucrats, honed in the dark arts of diplomacy, but who have never been near a business in their lives, mutter menacingly about the threat to the economy if we were excluded from the Single Market. Of course, it may be possible to be outside the EU but still in the Single Market, like Norway, or outside both but enjoying most of the benefits, like Switzerland.

Real ambassadors for China over coming decades will be the Chinese people, says scholar. China foreign policy expert Zhao Minghao believes the current world order is in a "plastic" moment. The research fellow at the China Center for Contemporary World Studies, the Communist Party of China think tank, argues many of today's international institutions emerged in the aftermath of World War II and now need to be reshaped.