ChatGPT’s new voice feature mimics how people form relationships and might be a double-edged sword for social isolation, argues evolutionary biologist Rob Brooks. That’s because the skill amplifies the system’s ability to make us feel we’re really getting to know each other by verbally sharing intimate details of our lives, a process called ‘escalating self-disclosure’. Brooks worries that as they get closer to chatbots, users might neglect their real relationships or come to expect the same amenability from other people.