On 7 August, Kate Fox received a phone call that upended her life. A medical examiner said that her husband, Joe Ceccanti – who had been missing for several hours – had jumped from a railway overpass and died. He was 48.
Fox couldn’t believe it. Ceccanti had no history of depression, she said, nor was he suicidal – he was the “most hopeful person” she had ever known. In fact, according to the witness accounts shared with Fox later, just before Ceccanti jumped, he smiled and yelled: “I’m great!” to the rail yard attendants below when they asked him if he was OK.
But Ceccanti had been unravelling. In the days before his death, he was picked up from a stranger’s yard for acting erratically and taken to a crisis center. He had been telling anyone who would listen that he could hear and feel a painful “atmospheric electricity”.
He had also recently stopped using ChatGPT.


Mental illness can come for any walk of life. LLMs clearly have the potential to exacerbate or cause mental illness.
It has striken me how one upon a time, thinking that the media you interacted with spoke directly to you personally was a pretty strong indicator of schizophrenia. Now that’s just marketing using AI.