Hossein’s interest in human behavior can be traced back well before his pre-university years. Even as a little boy, when he still had no idea what adults meant by behavior, he was curious about the fundamental causes of human behavior. He tested the threshold of other people’s patience—including that of his parents—by being the naughtiest kid in his family. Since studying applied psychology and human-computer interaction, Hossein has pursued a career as a user experience researcher at a software and game-development company. When not conducting UX research, he cooks Persian food, writes, and gives public speeches.