Publisher Macmillan’s corporate venturing unit’s investment in two Brazil-based education technology companies, Veduca and Easyaula bring to mind UK prime minister Harold Macmillan speech to South Africa’s parliament in 1960, when he said: “The wind of change is blowing through this continent [Africa]. Whether we like it or not, this growth of national consciousness is a political fact.”

The speech heralded the independence of the British colonies and dependencies and Dominions in Africa and elsewhere round the world that decade…