Causal language
Consider the following sentence: " You ate the blueberries because your fingers are stained." What is odd about it is that ordinarily, when we say "X because of Y" we mean "Y is the cause of X". For example, "The window broke because the baseball hit it" means that the baseball hitting the window caused it to break. But in this case, the sentence surely doesn't mean that your fingers being stained caused you to eat the blueberries. Now one might object that it's a weird sentence, and that instead it should be " I believe you ate the blueberries because your fingers are stained. " But the original version is not confusing to an English speaker, and people sometimes do speak this way. Language is a complicated business. And language about causality is particularly tricky. It is well known that correlation does not imply causation . But when scientific studies are reported in the media, this dictum is often forgotten. Professor...