The article "Pursuing Happiness: The Architecture of Sustainable Change" by Sonja Lyubomirsky, Kennon M. Sheldon, and David Schkade explores the pursuit of happiness and the factors that influence it. The authors argue that while genetic determinism and hedonic adaptation have historically led to pessimism about the possibility of increasing and sustaining happiness, there are emerging sources of optimism. They propose that a person's chronic happiness level is governed by three major factors: a genetically determined set point for happiness, circumstantial factors, and intentional activities and practices. The authors focus on the role of intentional activities, which they argue offer the best opportunities for sustainably increasing happiness. They discuss the limitations of changing one's set point and circumstances, and highlight the potential of intentional activities to counteract hedonic adaptation. The article also addresses the importance of person-activity fit, optimal timing and variety of activities, sustained effort, and positive habits in achieving and maintaining higher levels of happiness. Finally, the authors discuss preliminary interventions aimed at increasing happiness based on their model.The article "Pursuing Happiness: The Architecture of Sustainable Change" by Sonja Lyubomirsky, Kennon M. Sheldon, and David Schkade explores the pursuit of happiness and the factors that influence it. The authors argue that while genetic determinism and hedonic adaptation have historically led to pessimism about the possibility of increasing and sustaining happiness, there are emerging sources of optimism. They propose that a person's chronic happiness level is governed by three major factors: a genetically determined set point for happiness, circumstantial factors, and intentional activities and practices. The authors focus on the role of intentional activities, which they argue offer the best opportunities for sustainably increasing happiness. They discuss the limitations of changing one's set point and circumstances, and highlight the potential of intentional activities to counteract hedonic adaptation. The article also addresses the importance of person-activity fit, optimal timing and variety of activities, sustained effort, and positive habits in achieving and maintaining higher levels of happiness. Finally, the authors discuss preliminary interventions aimed at increasing happiness based on their model.