The math we learn in school can seem like a dull set of rules, laid down by the ancients and not to be questioned. In How Not to Be Wrong, Jordan Ellenberg shows us how terribly limiting this view is: Math isn’t confined to abstract incidents that never occur in real life, but rather touches everything we do—the whole world is shot through with it.

Math allows us to see the hidden structures underneath the messy and chaotic surface of our world. It’s a science of not being wrong, hammered out by centuries of hard work and argument. Armed with the tools of mathematics, we can see through to the true meaning of information we take for granted: How early should you get to the airport? What does “public opinion” really represent? Why do tall parents have shorter children? Who really won Florida in 2000? And how likely are you, really, to develop cancer?

While human lives are endlessly variable, our most memorable positive moments are dominated by four elements: elevation, insight, pride, and connection. If we embrace these elements, we can conjure more moments that matter. What if a teacher could design a lesson that he knew his students would remember twenty years later? What if a manager knew how to create an experience that would delight customers? What if you had a better sense of how to create memories that matter for your children?

This book delves into some fascinating mysteries of experience: Why we tend to remember the best or worst moment of an experience, as well as the last moment, and forget the rest. Why “we feel most comfortable when things are certain, but we feel most alive when they’re not.” And why our most cherished memories are clustered into a brief period during our youth.

Readers discover how brief experiences can change lives, such as the experiment in which two strangers meet in a room, and forty-five minutes later, they leave as best friends. (What happens in that time?) Or the tale of the world’s youngest female billionaire, who credits her resilience to something her father asked the family at the dinner table. (What was that simple question?)

From the aftermath of the Second World War to the present, Varoufakis recounts how the eurozone emerged not as route to shared prosperity but as a pyramid scheme of debt with countries such as Greece, Ireland, Portugal and Spain at its bottom. Its woeful design ensured that collapse would be inevitable and catastrophic. But since the hurricane landed Europe’s leaders have chosen a cocktail of more debt and harsh austerity rather than reform, ensuring that the weakest citizens of the weakest nations pay the price for the bankers’ mistakes, while doing nothing to prevent the next collapse. Instead, the principle of the greatest austerity for those suffering the greatest recessions has led to a resurgence of racist extremism. Once more, Europe is a potent threat to global stability.
Drawing on the personal experience of his own negotiations with the eurozone’s financiers and offering concrete policies and alternatives, Varoufakis shows how we concocted this mess and how we can get out of it. And The Weak Suffer What They Must? reminds us of our history in order to save European capitalism from itself.