Maria Konnikova is the New York Times bestselling author of Mastermind: How to Think Like Sherlock Holmes, a brilliant book that draws on the adventures of the fictional detective to illustrate the power of observation and critical thinking. Her latest book, The Confidence Game, explores the flipside of detection, and why humans are so hardwired to believe in con artists and those that would exploit our trust. Over breakfast in New York, we spoke about the differences between the way Holmes and Watson see the world, the art of building a memory attic, and how con artists are so adept at manipulating people’s belief systems. Of course, none of these things might strike you as shocking if you had chanced upon her first ever book, written in Russian. It was five pages long and, she assures me, had something to do with trolls.