The Half-Life of Facts


“The Half-Life of Facts” is easily one of the best books of the year on science.

Bloomberg


Facts change all the time. Smoking has gone from doctor-recommended to deadly. We used to think the Earth was the center of the universe and that Pluto was a planet. For decades, we were convinced that the Brontosaurus was a real dinosaur. In short, what we know about the world is constantly changing.

But it turns out there’s an order to the state of knowledge, an explanation for how we know what we know. Samuel Arbesman is an expert in the field of scientometrics—literally the science of science. Knowledge in most fields evolves systematically and predictably, and this evolution unfolds in a fascinating way that can have a powerful impact on our lives.

The Half-Life of Facts is a riveting journey into the counterintuitive fabric of knowledge. It can help us find new ways to measure the world while accepting the limits of how much we can know with certainty.

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Praise

…engaging, insightful jaunt across the backstage of scientific knowledge. Packed with interesting tidbits…the book explains how facts spread and change over time.

Discover Magazine


The book takes us on a whirlwind tour of emerging fields of scientometrics, and undertakes a broader exploration of metaknowledge…Arbesman is a delight­ful guide to the territory, patently in love with this emerging field. He is also a skilled storyteller, and his wide-eyed reporting invigorates material that could have been dry and academic.

Nature


…delightfully nerdy…

Wall Street Journal


An engaging book…It’s a vivid account of the surprising ways in which new facts are accumulated, and how old knowledge is overturned.

Universe Today


Absorbing and approachable treatise on the nature of facts: what they are, how and why they change and how they sometimes don’t (despite being wrong)…Facts matter. But when they change—as they seem today to do with alarming frequency, we begin to lose that control. In his debut, Arbesman…advises us not to worry: While we can’t stop facts from changing, we can recognize that what we know “changes in understandable and systematic ways.”… With this, he introduces “scientometrics,” the science of science. With scientometrics, we can measure the exponential growth of facts, how long it will take, exponentially, for knowledge in any field to be disproved—say, 45 years for medical knowledge…like a good college professor, Arbesman’s enthusiasm and humor maintains our interest in subjects many readers may not have encountered before…[The Half-Life of Facts] does what popular science should do—both engages and entertains.

Kirkus Reviews

What does it mean to live in a world drowning in facts? Consider The Half-Life of Facts the new go-to book on the evolution of science and technology.

Tyler Cowen, author of An Economist Gets Lunch


 

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