According to a superfluity of economic experts and no fewer foreign policy wonks, on 2 April Donald Trump became the character in David Bowie’s song, ‘The Man Who Sold the World’. With one tragic/farcical performance in the White House’s Rose Garden, Trump would unleash inflation at home, trigger a global trade war, tank Wall Street, shatter the Trans-Atlantic Alliance, unite the rest of the world behind China and write off his second term before it had barely started.