How did Barack Obama, former American president know for sure whether Osama Bin Laden was in that compound in Abbottabad? Are football matches largely determined by luck? How can you measure coincidences? Sir David Spiegelhalter, the emeritus professor of statistics at the University of Cambridge explains it all. His new book, “The Art of Uncertainty: How to Navigate Chance, Ignorance, Risk and Luck” is a fascinating read even for those without any background in statistics and mathematics. Among many other things, the book is also a lesson in how to make complicated subjects interesting.