Understanding and utilizing data is crucial for precise decision-making, eliminating gaps and assumptions. Engineers value comprehensive telemetry (metrics, events, logs, traces) to distinguish useful information from noise. Data is practical and actionable, providing clear insights that save time and resolve issues efficiently. Collaborative data use among development, operations, security, and business teams dispels doubts and uncovers important connections. The focus is on using data to reveal effective solutions and the correct path forward, emphasizing the role of data for engineers.