Joseph, a freshman at Stanford University, has developed an AI assistant named Dot that can record and manage chat histories, as well as customize personalized schedules and task management based on conversations. By reading past memories and chat records, Dot can tailor travel plans to meet the needs of friends. The advent of Dot means that people no longer need to remember complex details; instead, they can rely on the AI assistant to handle and manage their daily lives. However, the proliferation of AI assistants has also sparked concerns about privacy and data security.