Future Babble: Why Expert Predictions Are Next to Worthless, and You Can Do Better
Gardner, a columnist and senior writer for the Ottawa Citizen (The Science of Fear), examines the misguided trust people place in media forecasters and "legions of experts" who make meaningless predictions about the future. He reviews the findings of psychologist Philip Tetlock, who had 284 experts from a range of disciplines make 27,450 predictions on political and economic trends, concluding they produced about the same results as random guesses. Biologist Paul Erhlich is one of his main targets. In 1968's The Population Bomb, Ehrlich predicted mass famines. In fact, Gardner points to America's "epidemic of obesity" and growing calorie intake worldwide. Gardner also probes economic and environmental worries, and warnings of wars, climate change, the Y2K hysteria, and the weather, which he says can be forecast with accuracy only at most two days out. Successful predictions are celebrated, Gardner says, while the wrong ones are forgotten. Yet he might have done well to remember more of those accurate predictions, and to focus more on Tetlock's conclusions about those experts who show greater accuracy and on how the public might recognize them. Instead, he writes off accurate predictions as "likely... a coincidence." (Mar. 17)(c) Copyright PWxyz, LLC.  All rights reserved.