Bill Gates reviews Matt Ridley's book "The Rational Optimist"

Found via Simoleon Sense.

The science writer Matt Ridley made his reputation with books like "The Red Queen: Sex and the Evolution of Human Nature" and "Genome: The Autobiography of a Species in 23 Chapters." His latest book, "The Rational Optimist: How Prosperity Evolves" is much broader, as its title suggests. Its subject is the history of humanity, focusing on why our species has succeeded and how we should think about the future.

Although I strongly disagree with what Mr. Ridley says in these pages about some of the critical issues facing the world today, his wider narrative is based on two ideas that are very important and powerful.

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The first is that the key to rising prosperity over the course of human history has been the exchange of goods. This may not seem like a very original point, but Mr. Ridley takes the concept much further than previous writers. He argues that our success as a species, as opposed to earlier hominids, resulted from innate characteristics that allowed us to trade. Not long after Homo sapiens emerged, we were using rare objects, like obsidian blades, far away from the source materials needed to produce them. This suggests that large numbers of commercial links were established even at the hunter-gatherer stage of our development.

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The second key idea in the book is, of course, "rational optimism." As Mr. Ridley shows, there have been constant predictions of a bleak future throughout human history, but they haven't come true. Our lives have improved dramatically—in terms of lifespan, nutrition, literacy, wealth and other measures—and he believes that the trend will continue. Too often this overwhelming success has been ignored in favor of dire predictions about threats like overpopulation or cancer, and Mr. Ridley deserves credit for confronting this pessimistic outlook.

Having shown that many past fears were ultimately unjustified, Mr. Ridley finally turns his "rational optimism" to two current problems whose seriousness, in his view, is greatly overblown: development in Africa and climate change. Here, in discussing complex matters where his expertise is not very deep, he gets into trouble.

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"The Rational Optimist" would be a great book if Mr. Ridley had wrapped things up before these hokey policy discussions and his venting against those he considers to be pessimists. I agree with him that some people are overly concerned with potential problems, and I hadn't realized that this pessimism was so common in rich countries over the last several centuries. As John Stuart Mill said in 1828, in a quote from the book that I especially enjoyed: "I have observed that not the man who hopes when others despair, but the man who despairs when others hope, is admired by a large class of persons as a sage."

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Mr. Ridley devotes his attention to just two present-day problems, development in Africa and climate change, and seems to conclude, "Don't worry, be happy." My prescription would be, "Worry about fewer things while understanding the lessons of the past, including lessons about the importance of innovation." This might qualify me as a rational optimist, depending on how stringent the criteria are. But there can be no doubt that excessive pessimism may cause problems with how society plans for the future. Mr. Ridley's book should trigger in-depth discussions on this important subject.

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Book: The Rational Optimist: How Prosperity Evolves