How do you know the simulation is relevant ?

are entitled to know a bit about what I have done in addition to what I preach. My first large-scale simulation experience was on the design of atomic bombs at Los Alamos during the Second World War. The experience made a great impression upon me, not only because of the accuracy achieved when compared with reality but also because of the more obvious fact that small-scale experiments are impossible in this field. This experience was followed by almost 30 years of doing simulations at Bell Laboratories, where I have been involved at various times in managing and using large-scale digital and analog computers. Thus I have had a great deal of experience with simulations in the areas of physics, engineering, aerodynamics, guidance and control, transistor research and design, chemistry, telephone research and design, the verification of mathematical theories--especially those involving probabilities-and even inventory control.