"Why do beer commercials dominate Super Bowl advertising? How do political ceremonies establish authority? Why were circular forms favored for public festivals during the French Revolution? This book answers these questions using a single concept: common knowledge. Game theory shows that in order to coordinate its actions, a group of people must form "common knowledge." Each person wants to participate only if others also participate. Members must have knowledge of each other, knowledge of that knowledge, and so on. Michael Chwe applies this insight, with striking erudition, to analyze a range of rituals across history and cultures. He shows that public ceremonies are powerful not simply because they transmit meaning from a central source to each audience member but because they let audience members know what other members know. In a new afterword, Chwe delves into new applications of common knowledge, both in the real world and in experiments, and considers how generating common knowledge has become easier in the digital age." -- From the jacket.

Since the 17th century, Western society has had a turbulent relationship with Reason. Descartes set out to reorganize all his opinions in the light of Reason, allowing, as Pascal bitterly reproached him, nothing else. In the course of the centuries which followed, the relationship with Reason became the object of a vigorous, often passionate debate. David Hume declared Reason to be impotent; Immanuel Kant observed that men suffered from 'misology' as the result of their disappointed expectations from Reason; G.W.F. Hegel declared that the main insight of philosophy consisted of the realization that Reason masterminded and guided all history. The debate has not remained restricted to philosophy. Max Weber, the most influential modern sociologist, was obsessed with the distinctive role of Reason in Western society, and the part it played in engendering industrialism. Social anthropologists have been preoccupied both with the universality and the diversity of conceptual thought. Emile Durkheim taught them to ask why all men were rational, whilst Max Weber taught sociologists to ask why some men were more rational than others. This book brings together the philosophical, historical and sociological discussions of rationality and strives to make clear the underlying issues and the continuity of the debate in the various disciplines.

A TIMES BOOK OF THE YEAR 2021 'Punchy, funny and invigorating ... Pinker is the high priest of rationalism' Sunday Times 'If you've ever considered taking drugs to make yourself smarter, read Rationality instead. It's cheaper, more entertaining, and more effective' Jonathan Haidt, author of The Righteous Mind In the twenty-first century, humanity is reaching new heights of scientific understanding - and at the same time appears to be losing its mind. How can a species that discovered vaccines for Covid-19 in less than a year produce so much fake news, quack cures and conspiracy theorizing? In Rationality, Pinker rejects the cynical cliché that humans are simply an irrational species - cavemen out of time fatally cursed with biases, fallacies and illusions. After all, we discovered the laws of nature, lengthened and enriched our lives and set the benchmarks for rationality itself. Instead, he explains, we think in ways that suit the low-tech contexts in which we spend most of our lives, but fail to take advantage of the powerful tools of reasoning we have built up over millennia: logic, critical thinking, probability, causal inference, and decision-making under uncertainty. These tools are not a standard part of our educational curricula, and have never been presented clearly and entertainingly in a single book - until now. Rationality matters. It leads to better choices in our lives and in the public sphere, and is the ultimate driver of social justice and moral progress. Brimming with insight and humour, Rationality will enlighten, inspire and empower. 'A terrific book, much-needed for our time' Peter Singer

Cross-cultural examination of notions and practices of rationality in ancient and modern societies, drawing on philosophy, ethnography and cognitive science.

Rationality and Cultural Interpretivism: A Critical Assessment of Failed Solutions critically assesses cultural interpretivism by scrutinizing five different proponents of it and their solutions to the problem of rationality. The book examines the works of Peter Winch, Charles Taylor, Clifford Geertz, Marshall Sahlins, and Gananath Obeyesekere and their contributions to the so-called rationality debate in the philosophy of the social sciences. This debate began with Winch’s criticism of Edward Evans-Pritchard and has become one of the central debates in the field since 1960s, continuing as a controversy between Sahlins and Obeyesekere. Kei Yoshida reveals the need for a cogent solution to the problem of rationality. He identifies two main problems with previous theories: first, that they exaggerate the differences between the natural and the social/cultural, and hence they also exaggerate the differences between the natural and the social sciences; and second, that they ignore important social science problems, particularly outcomes from the unintended consequences of human actions. Yoshida urges social scientists not simply to interpret agents’ intentions or symbolic systems, but also to explain the unintended consequences of human actions. Still entangled in positivism, cultural interpretivists claim that the social sciences differ from the natural sciences and thus reject any unity of method. Yoshida argues that we need to overcome the mistaken positivist image of science in order to develop a more fruitful philosophy of the social sciences. The analysis presented in this book will be of value to students and scholars of social epistemology, philosophy of science, philosophy of the social sciences, and the social sciences themselves, as well as anyone interested in the philosophical problem of rationality and relativism.