At an early stage of my career, a product person asked me to walk them through our code to show how a particular algorithm worked so that they could verify it w

At an early stage of my career, a product person asked me to walk them through our code to show how a particular algorithm worked so that they could verify it worked according to their initial design. Since I was using higher-order programming to control dispatch of various business rules, and they were not familiar with higher-order programming at all, there was a bit of a communication barrier/learning barrier that needed traversal.