Personalization Gave a Delusion Somewhere to Grow
A California lawsuit alleges that GPT-4o reinforced Michael Lines’s religious delusions after he disclosed his bipolar diagnosis, medication, and fear that he was losing contact with reality. The chatbot allegedly interpreted a manic episode as a spiritual summons, affirmed that Lines was Jesus, assumed a divine identity, and continued that narrative as his messages became suicidal. Lines survived an overdose.
The case places personalization, memory, sycophancy, and disability within product-liability and negligence law. It also exposes the weakness of safeguards that wait for an explicit self-harm request. By then, a chatbot may have spent weeks strengthening the beliefs that made the crisis possible. Effective protection requires long-term risk detection, firm reality-testing, separation between safety context and engagement-oriented personalization, and a route to human support that does not abandon the user.