24 JAN 2015 by ideonexus

 Economic Forecasting VS Science Fiction Predictions

There are two ways to predict the progress of technology. One way is economic forecasting, the other way is science fiction. Economic forecasting makes predictions by extrapolating curves of growth from the past into the future. Science fiction makes a wild guess and leaves the judgment of its plausibility to the reader. Economic forecasting is useful for predicting the future up to about ten years ahead. Beyond ten years it rapidly becomes meaningless. Beyond ten years the quantitative chang...
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24 DEC 2013 by ideonexus

 How Physicians Were Once Like Today's Economists

The moral game of blame attribution is only one subtype of misattribution arbitrage. For example, epidemiologists estimate that it was not until 1905 that you were better off going to a physician. (Ignaz Semelweiss noticed that doctors doubled the mortality rate of mothers at delivery.) The role of the physician predated its rational function for thousands of years, so why were there physicians? Economists, forecasters, and professional portfolio managers typically do no better than chance, y...
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John Tooby describes a past when you were more likely to die from seeing a physician and likens it to economics and other forecasters who do no better than chance.