This document discusses using a data-driven approach to product development. It recommends incorporating data into every step of development by: 1) Analyzing data to gain insights on what is useful for users; 2) Measuring and testing solutions through A/B testing to determine if an approach solves the intended problem; and 3) Continually collecting user data and feedback to inform the process. The document advocates for cross-functional squads and using data insights to drive ideas rather than assumptions. The goal is to develop features and experiences that truly benefit users based on empirical evidence.