It’s doubtful China’s President Xi Jinping has seen the film ‘Back to the Future. After all, “Xi Jinping thought” doesn’t hold with American decadence and frippery. Innovative scientists questioning enshrined thinking, and cheeky youngsters questioning authority, is not his thing, just ask the youth of Hong Kong. Nevertheless, that’s where he’s heading. Back to the 1950s and a political climate in which Mao Zedong could get away with cementing his grand titles: Great Leader, Great Teacher, Great Helmsman.