This document summarizes the Scrum adoption curve, outlining five stages - early, growing, stalled, maturity, and professional Scrum. It shows how teams and organizations typically progress from initial optimism in doing Scrum, to pessimism as dependencies and multiple teams are encountered, to pain as organizations struggle to change culture. Finally, teams reach enlightenment, focusing outward on business agility and co-creation through self-organizing, cross-functional feature teams following Scrum values. The document emphasizes that Scrum is designed to empirically assess development efforts and continuously improve, and that professional Scrum represents a perfection vision not fully attainable.