‘A book to get the neurons firing. As a passionate game player I loved reading a neuroscientist’s perspective on the role games have played in humanity’s attempts to navigate the game of life. A dopamine hit on every page’ Marcus du Sautoy

A sweeping intellectual history of games and their importance to human progress.

We play games to learn about the world, to understand our minds and the minds of others, and to practice making predictions about the future. Games are thought to be older than written language, and have now become the dominant cultural media—bigger than movies, TV, music, and literature combined. They are also fun. But as neuroscientist and physicist Kelly Clancy argues, it’s time we started taking them more seriously.

In Playing With Reality, she chronicles the riveting and hidden history of games since the Enlightenment, weaving an unexpected path through military theory, biology, artificial intelligence, neuroscience, cognitive psychology, and the future of democracy. Games, Clancy shows us, have been deeply intertwined with the arc of history. War games shaped the outcomes of real wars in nineteenth and twentieth century Europe. Game theory warped our understanding of human behaviour and brought us to the brink of annihilation—yet still underlies basic assumptions in economics, politics, and technology. We used games to teach computers how to learn for themselves, and now we are designing games that will determine the shape of society and future of democracy. Games also inform the basic systems that govern our daily lives: the social media and technology that can warp our preferences, polarise us, and manufacture our desires.

Lucid, thought-provoking, and masterfully told, Playing With Reality makes the bold argument that the human fascination with games is the key to understanding our nature.

"A wide-ranging examination of how games have shaped the world... Clancy weaves a cautionary tale about what happens when human fascination with games translates into a belief in the power of simplified world models that are often untethered from reality... a rewarding read that raises important questions about who defines the rules of the game-inspired systems that dominate modern life - and whether we should automatically accept those rules" - New Scientist

"Clancy weaves a clear-eyed account of games from ancient history—they predate written language, she tells us—to the modern world of computers and the Internet… Clancy carefully puts these historical moments and developments in context. This approach is particularly pleasurable when it takes the form of deep dives into specific games… contextualizes and clarifies the upshot of losing perspective" - Scientific American

"A history of how games and game theory have changed the world… by turns philosophical and polemical, this is a provocative and fascinating book" - Economist

"A sweeping investigation… The history fascinates, and Clancy’s sophisticated analysis highlights the dangers of overgeneralizing from games to reality... Readers won’t want to put this down" - Publisher's Weekly

"Absorbing. . . . A revealing look at the hidden role that games have played in human development for centuries" - Kirkus Reviews