Is more data always better? Do algorithms really make better decisions than humans? Can we stay in control in an increasingly automated world? Drawing on examples from all spheres of life - media literacy, online dating, self-driving cars, the justice system, health records - Gerd Gigerenzer shows how, when it comes to data and decision making, more isn't always better: when dealing with uncertainty, the elegant and nuanced simplicity of human reasoning beats complex algorithms time and time again.Filled with practical examples and cutting-edge research, How to Stay Smart in a Smart World examines the growing role of AI at all levels of daily life with refreshing clarity. This book is a liferaft in a sea of information and an urgent invitation to actively shape the digital world in which we want to live.