A similar argument, using slightly different data, can be found in political scientists Marc Hetherington and Jonathan Weiler’s Prius or Pickup? How the Answers to Four Simple Questions Explain America’s Great Divide: Of the many factors that make up your worldview, one is more fundamental than any other in determining which side of the divide you gravitate toward: your perception of how dangerous the world is. Fear is perhaps our most primal instinct, after all, so it’s only logical that people’s level of fearfulness informs their outlook on life.32