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| We wonder if irrigation causes droughts, too. Gordon? |
Perhaps the most common logical fallacy known to man is the assumption that correlation implies causation. This form of oversimplification of complex events is a favorite of demagogues and politicians, right up there with post hoc, ergo propter hoc: "after the fact, therefore because of the fact." Freelance dummies like to trot out this sort of simple-minded logic, too. Take the example of Gordon Rupe (writing under the pen name gordon) at DailyTwoCents.com when he penned a little note he called "Did Fracking Cause California’s Drought?"¹
Gordon did some homework and a little math. Then he drew a conclusion based on his math -- or, rather, he pointed his readers at the conclusion he wanted them to draw. Here's how it went down, with our comments