In this discussion, Sarita, who focuses on measuring developer productivity at Meta, and Moritz, who improves developer experience metrics, delve into the innovative concept of Diff Authoring Time (DAT). They explore how this metric captures the time taken to submit code changes and its implications for productivity evaluation. The conversation touches on the challenges of measuring developer efficiency, maintaining data privacy, and the potential for future enhancements in measuring metrics. Their insights reveal a data-driven approach to maximizing developer effectiveness in a tech-driven world.