No, the title of today's post is not a joke, even though it has often been used that way in the past. The title was inspired by yesterday's Wall Street…

Since the subject has come up so often, today a note on the words correlated and correlation. They have technical definitions and plain English meanings. The two definitions overlap but…

Introduction One summary of the Peter Principle, named after psychologist Laurence J. Peters, is that "in a hierarchy every employee tends to rise to their level of incompetence." Three Italian…