The Caveman and Thinker do better when they work together. This funny, brief animation gives a great example of the problems when one of the brain characters takes over. The blue character is similar to what I call the Thinker, and the red one has the passion and impulsiveness of the Caveman (or Cavewoman, if you prefer). This part of the passion of the Caveman is not one we talk about much in class 🙂