Relative to his level of fame, his actual level of contribution as far as pushing forward AI, I’m not so sure about.
I deeply appreciate his educational content and I’m glad that it has led to a way for him to gain influence and sustain a career. Hopefully he’s rich enough from that that he can focus 100% on educational stuff!
What do you know about his work?
He's been leading the vision team at Tesla, implementing in the field all the papers that were available in the subject of autonomous driving and vision (he explicitly wrote that). He has not published about it surely due to obligations with Tesla.