I learnt two new words today, thanks to Gavin:
Perseveration is the repetitive and often involuntary continuation of a thought, behavior, or action that a person is unable to stop or shift away from, even when it's no longer relevant or appropriate. It differs from perseverance (enduring effort) and is often a symptom of brain injury, neurological disorders, or certain psychiatric conditions, indicating an inability to switch tasks or ideas effectively.
and...
Confabulation. Confabulation is a memory disorder where someone involuntarily creates false, distorted, or misinterpreted memories, believing them to be true without intending to deceive. It serves as a compensatory mechanism to fill gaps in memory and maintain a sense of self-coherence. This condition is often associated with neurological conditions like dementia,
Newsom asked Grok and Grok obliged: