Explore the evolution and potential of modern psychology in this thought-provoking TED-Ed talk by Martin Seligman. Delve into the field's shift beyond the disease model, examining its victories and costs. Discover the concept of positive psychology and its scientific foundations. Learn about three types of "happy" lives: the pleasant life, the good life, and the meaningful life. Understand positive interventions and their impact on well-being. Gain insights into Seligman's vision for psychology's future and his optimistic outlook on the field's potential to enhance human flourishing.