Keith Devlin is Dean of the School of Science at Saint Mary's College of California and Senior Researcher at Stanford University's Center for the Study of Language and Information. A key participant in the six-part PBS television series "Life by the Numbers," he is the author of "Life by the Numbers, Goodbye, Descartes, Logic and Information," and "Mathematics: The New Golden Age," His most recent book is "InfoSense: Turning Information into Knowledge."