From World War II to the 2008 economic collapse and beyond, history shows that economists don\u2019t always see the future as clearly as they think they do, says David McWilliams. Using the words of W.B. Yeats, McWilliams makes the case for embracing unconventional thinkers \u2013 poets, artists and musicians \u2013 and offers a creative path towards a world filled with less confirmation bias and more understanding.