Facts are not the truth

I learned a new word today. Endogeneity. Don't worry we haven't turned this into a blog for English majors (not that there's anything wrong with that). Endogeneity is the technical term for confusing cause and association. For example, you could show a relationship between ice cream and drowning. It's easy, really. Ice cream sales go up in hot weather, more people go to the pool and the beach at the same times. More people in the water increases the number of folks who drown while those who are just hot eat more ice cream. Correlation, not causation.

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