At the Davos Economic Forum in Switzerland, Trump’s incoherence gave Chinese officials a chance to look like the adults in the room. Trump ranted and confused Greenland with Iceland — like a senile warlord unable to even remember which land he wants to conquer. Chinese Vice-Premier He Lifeng, meanwhile, played statesman, telling the crowd at Davos: “The world cannot return to the law of the jungle, where the strong prey on the weak.”