With the amount of time he's put into VR over the last decade I think it's fair to say he's as much an expert as anyone else at this point.
He's now working on a startup in the AGI field, which will also probably go nowhere for him.
He gets to work on things that excite him - what a place to be in life. We can all envy that - but he's not very good at gauging problems and consistently underestimates their difficulty/time-to-market.