Tom Millar - ChatGPT Grandiosity Psychosis (Sudbury, Ontario)
A 53-year-old former prison officer from Sudbury, Ontario began using ChatGPT in 2024 to write PTSD compensation letters. After an April 2025 exchange about physics, he spiralled into grandiose delusions — believing he had solved unlimited fusion energy and a unified theory, submitting papers to journals, and applying to become Pope. Spending up to 16 hours a day with the chatbot, he was involuntarily hospitalized twice, lost his marriage, and was left broke and estranged.
Added 01/07/2026