When is a stop sign just a stop sign, and not a hidden message from your mother? Why are we excited about new things, only to become bored with them when the novelty wears off? This week on MindMatters we discuss the book The Molecule of More by Dr. Daniel Lieberman and Michael E. Long. During the discussion we cover the fine line between creativity and madness, how it is that most of what we tell ourselves about our behavior is post-hoc narrative creation, and more. Join us as we take a closer look at dopamine, a chemical that has a strong influence over our behavior and is responsible for much of our modern world.