Re restlessness - the first time I watched the video, I wondered about d-r-u-g-s. But actually, I think he is just keeping himself in extremely good shape physically, probably very tuned in to keeping limber and the energy moving through. It's probably his solution to having to sit and give interview after interview to all these little interviewers. They can do dozens a day, one after the other. That sounds draining and potentially extremely tedious.
He actually looked like he's doing great - grounded, calm, alive. (Much better than just a month or so ago.)