QUOTE : In reality, electrons move in “probability clouds.” So what do you tell a sixth grader? Do you talk about the motion of planets, which is easy to understand and nudges you closer to the truth? Or do you talk about “probability clouds,” which are impossible to understand but accurate? The choice may seem to be a difficult one: (1) accuracy first, at the expense of accessibility; or (2) accessibility first, at the expense of accuracy. But in many circumstances this is a false choice for one compelling reason: If a message can’t be used to make predictions or decisions, it is without value, no matter how accurate or comprehensive it is. Herb Kelleher could tell a flight attendant that her goal is to “maximize shareholder value.” In some sense, this statement is more accurate and complete than that the goal is to be “THE low-fare airline.” After all, the proverb “THE low-fare airline” is clearly incomplete—Southwest could offer lower fares by eliminating aircraft maintenance, or by asking passengers to share napkins. Clearly, there are additional values (customer comfort, safety ratings) that refine Southwest’s core value of economy. The problem with “maximize shareholder value,” despite its accuracy, is that it doesn’t help the flight attendant decide whether to serve chicken salad. An accurate but useless idea is still useless.