Explore mob programming and its impact on developer productivity in this GOTO Berlin 2019 conference talk. Discover how a team of 4-5 people working at one computer can achieve high productivity through the concept of flow. Learn about different interpretations of flow, including the intense focus state known as "being in the zone" and the Lean Manufacturing approach to minimizing waste. Examine the benefits of mob programming, such as quick problem-solving and reduced context-switching. Investigate how psychological flow can be achieved both individually and as a team. Analyze the application of flow principles in manufacturing, product development, and software creation. Gain insights into measuring waste, managing queues, and overcoming common productivity barriers. Understand the potential of mob programming to enhance team collaboration, knowledge sharing, and overall software development efficiency.