Afshin Darian, a co-creator of JupyterLab, and Sylvain Corlay, a key contributor on Jupyter's Steering Committee, delve into the inner workings of Jupyter. They explore its evolution from a Python-centric tool to a versatile, multilingual platform enhancing scientific communication. The duo discusses integrating the Language Server Protocol for coding efficiency, Jupyter's architectural complexities, and addressing security risks in collaborative environments. They also tackle the future of real-time collaboration and innovative applications, boosting productivity across multiple fields.