"If you think dramatic social events like terrorist attacks, assassinations, and wars are the driving force behind human affairs, think again. The real driver of social change, John Casti says, is deeper, subtler, and often unrecognized -- the cycle of society's mood from optimism to pessimism and back again. This provocative, daring, and wonderfully entertaining book tackles conventional wisdom head on and challenges the reader to see the world in a radically new way. Mass psychology matters far more than most of us realize."

Thomas Homer-Dixon, Author of The Upside of Down: Catastrophe, Creativity, and the Renewal of Civilization

"In this fascinating book, John Casti argues that, far from events driving public attitudes, the converse is true. At very least, he makes a convincing case that the causal arrow can and often has run either way. More than ever before, we need a global "mood" that promotes sustainability, which makes this an important and timely book; it matters."

Robert M. May, Professor of Zoology, Oxford and former President of the Royal Society (2000-2005)

"A fascinating and original analysis of how our hopes and fears for the future can affect what actually happens, a welcome antidote to social forecasting methods that ignore human psychology, and a cracking good read."

Ian Stewart, Mathematician and popular-science author

"Casti, as always, is brilliant, provocative, and fun to read. Not a page passes without the reader being ambushed by some entirely new thought."

Harry Swain, Author and former Deputy Minister of Industry for Canada

"If you've ever wondered why, then this is a book you absolutely must read not just because of where society has been, but where it may be headed."

Keith Fitz-Gerald, Chief Investment Strategist, Money Map Press and author of "Fiscal Hangover"

"Homo economicus is extinct, replaced by Homo socionomicus. People are not rationally calculating utility maximizing machines. We are a social primate species driven by emotions and herd instincts, and the "animal spirits" that push and direct the economy come to life in this ground-breaking work that promises to shake up how we all view the economy in this post meltdown world. Economists may disagree with Casti on his heavy emphasis on the social mood of society, but they ignore him at their peril."

Michael Shermer, Publisher of Skeptic magazine, columnist for Scientific American, author of The Mind of the Market, and a professor at Claremont Graduate University.

"This is an unusual yet important book. If many historians think history is just 'one damned thing after another,' driven by chance, John Casti argues that human emotion and belief drive history and endow it with foreseeable patterns. The 'socionomics' he champions may seem peculiar in the current intellectual climate, but its ideas will likely be part of a future and more scientific understanding of human events."

Mark Buchanan, author of "Ubiquity: The Science of History

"I am an assiduous reader of John Casti's books as they provide a complex-systems perspective on things, in addition to being very pleasant to read. He is a real scientific intellectual."

Nassim Taleb, Author of "The Black Swan"

"They [the chapters] tell an engrossing story, and the mystery heightens as it goes. . . . it's chatty and knowing."

Greg Benford, Physicist and science-fiction writer, author of "Timescape" and "Deep Time"

"I am struck by how thought-provoking it all is. I am sure that your book will draw a lot of attention"

Tor Norretranders, Science writer, author of "The Generous Man" and "The User Illusion".

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