generates an easier question, substitutes it, and answers it. Kahneman defines this as a heuristic: a simple process to find answers to hard questions, even though those answers may not be perfect. Issues arise when the heuristics generated are inadequate substitutes. The mood heuristic is the way the mind substitutes an assessment of a current mood for the more complicated question of general happiness or other emotional assessment. The affect heuristic refers to the way we tend to allow our likes and dislikes to control our beliefs about the world.