Captology, short for “computers as persuasive technologies,” is the study and practice of designing and using technology to influence and change human behavior. It combines principles from psychology, human-computer interaction, and persuasive communication to create digital tools and interfaces that can motivate, persuade, and even manipulate individuals to take certain actions or adopt certain beliefs. Captology is a rapidly growing field, with applications in marketing, education, healthcare, and more, but also raises ethical concerns about the power and responsibility of technology in shaping human behavior.