TO DANGLE A Nobel peace prize is a sure way to pique Donald Trump’s interest. So it was telling that Sam Altman, the chief executive of OpenAI, proposed a new pathway to it ahead of a visit this month to America by China’s president, Xi Jinping. If the two leaders could reach a deal on artificial intelligence, both should get the award, Mr Altman told Fortune magazine on September 12th. Echoing other American AI bosses after new warnings that superintelligent models could destroy mankind, Mr Altman argued that China and America should not risk losing control of the technology in…