Gergely Orosz wrote this article on the lessons he learned operating Uber’s payment system. I enjoy reading about other people’s experiences and perhaps you do as well. Some of the things that Gergely presents here resonate with my experiences running systems for Cengage Learning and InSpeed Networks, and performing reviews of the systems of my consulting clients. At least a few these lessons I learned operating nuclear power plants on submarines in the Navy. Yes, I still have the scars, both mental and physical.