# Idea [[Page 2018 model thinker - what you need to know to make data work for you]] > The skills required to excel at one-to-many differ from the mathematical and analytic talents many people think of as necessary for being a good modeler. The process of one-to-many involves creativity. It is to ask: How many uses can think of for a random walk? To provide a hint of the forms that creativity takes, at the end of the chapter we apply the geometric formula for area and volume as a model and use it to explain the size of supertankers, to criticize the body mass index, to predict the scaling of metabolisms, and to explain why we see so few women CEOs. # References