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You’ve probably heard that “correlation is not causation”, but what does that mean? It’s a phrase that captures the fact that, just because two things are correlated doesn’t mean that one causes the other. This can be seen most vividly in correlations between things that have clearly got absolutely nothing to do with each other. Such as the 0.975 correlation (that’s very, very strong!) between the number of movies Elijah Wood appeared in and the number of orderlies in Oklahom

Nearly a century of scientific research, based on hundreds of studies of twins (identical and fraternal), has been thrown into question....

Personal finance can be pretty confusing. How much should you save? How should you approach paying off your student debt? And what’s the...