Suppose you have a set of tools, a stop watch and a measurable goal. How quickly can you accomplish that measurable goal? How few tools can you use to accomplish that goal? How well did you accomplish that goal?
Answer all three of these questions and you probably have a good idea of your problem solving speed, efficiency and effectiveness. Economy of motion means using the least amount of effort to accomplish your goal. As Professor King has said in the past, “what is the least amount of force necessary?”.
Problem solving: it’s what we do.