Ark. homes evacuated after oil pipeline spill Is your smart phone making you lonely? As the cell phone turns 40 years old, you might think that the technology has brought people closer together, but new research shows it can leave us feeling disconnected. Barbara Fredrickson, professor of psychology at the University of North Carolina, Nick Bilton, technology columnist at the New York Times, and Sherry Turkle, a psychology professor at MIT, discuss the pros and cons of mobile phones.