Do you have any proof even circumstantial?

I mean ... common sense?

Barring extreme illness or family circumstance, can you suggest any other reason (than firing) why a young person would voluntarily leave a plum job at the hottest, most high-profile, tech company in the world?

Yes. All the conspirators are out now.

https://nypost.com/2024/03/08/business/openai-chief-technolo...