The text emphasizes the importance of measuring the impact of each feature shipped by product managers, highlighting several benefits such as making informed decisions, improving user experience, increasing engagement, and differentiating products in a competitive market. Tools like Statsig are mentioned, which offer multiple methods to measure the impact of experiments, including features like scorecard panels and adjustments for statistical significance via techniques like CUPED and sequential testing. The narrative discusses the evolution of experimentation practices, referencing key insights from industry experts and the journey of platforms like Optimizely and Facebook in shaping product strategies. It also touches on personal experiences at Statsig, emphasizing the value of an experimentation culture and the reliability of A/B testing for gathering evidence and driving product development.