Imagine going online to chat with someone and finding an account with a profile photo, a description of where the person lives, and a job title . . . indicating she is a therapist. You begin chatting and discuss the highs and lows of your day among other intimate details about your life because the conversation flows easily. Only the “person” with whom you are chatting is not a person at all; it is a “companion AI.” Recent statistics indicate a dramatic rise in adoption of these c...