The word correlations does not equal fun. At least, to me it doesn’t. Maybe you’re a statistics wizard who thinks correlations are the bomb. Power to you. My point is that for most of us, correlations are, well, a necessary evil.
I do know the ground rule of statistics, of course: correlation does not equal causation. Just because two quantities happen to occur at the same time, multiple times, does not mean one is causing the other (or the other way around).
Statisticians call these spurious correlations: a mathematical relationship in which two or more events or variables are not causally related to each other (i.e. they are independent), yet it may be wrongly inferred that they are, due to either coincidence or the presence of a certain third, unseen factor (referred to as a “common response variable”, “confounding factor”, or “lurking variable”). (Source: Wikipedia)
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