A well-crafted hypothesis is essential for effective A/B testing, as it provides direction and meaning to the experimentation process. A good hypothesis should not only predict a specific outcome but also explain why that outcome is expected, thereby providing insight into the underlying mechanism of action. This clarity enables teams to understand their product and users better, leading to more informed decision-making and ultimately delivering a delightful experience for users. However, relying solely on metrics can lead to imperfections in measurement, making experimentation less effective if not balanced with intuition and taste. By grounding experiments in user behavior and having strong hypotheses, A/B tests can play a more pointed role in confirming or challenging product intuition, leading to a deeper understanding of the product experience.