The genius here lies in how Ephron captures the messy truth that confidence and contentment are contagious—more persuasive than any argument. Most people think the line's power comes from its surface humor (the famous deli scene), but what really matters is that Ephron understood desire isn't rational; we don't choose what we want based on logic, but by witnessing someone else already possess it. Watch how this plays out at dinner parties: someone's genuine delight in their work, their marriage, their morning routine becomes instantly magnetic, and suddenly others aren't envying the accomplishment but yearning for that particular way of *being*. Ephron knew that wanting what someone else has begins not with covetousness, but with the recognition of their unmistakable aliveness.