Twitter has many uses that might not occur to people who went to college long ago and don’t have much familiarity with such social media. In the latest Pope Center piece, Harry Painter (who is a recent grad) explores some of the innovative uses of Twitter that college students have devised. It seems that we have another “invisible hand” phenomenon here. As Harry writes, “While this is probably not their intention, people who expose their friends on the Internet may unwittingly be encouraging moderation. Especially those who know that they cannot tolerate alcohol will want to avoid being the next online sensation at their college.”