Ronald Bailey on How Half the Facts You Know Are Probably Wrong

Dinosaurs were cold-blooded. Increased K-12 spending and lower pupil/teacher ratios boost public school student outcomes. Most of the DNA in the human genome is junk. Saccharin causes cancer and a high fiber diet prevents it. Stars cannot be bigger than 150 solar masses.

In the past half-century, all of the foregoing facts have turned out to be wrong, writes Ron Bailey. In the modern world facts change all of the time, according to Samuel Arbesman, author of the new book The Half-Life of Facts: Why Everything We Know Has an Expiration Date (Current).

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