I have never met John, but I have met his brother, Rob. Despite his huge wealth, on a scale incomprehensible to me and most of the rest of this forum I suspect, he is a genuine, warm-hearted, and normal fellow. I would be surprised if John were not the same. Rob is mad on aviation too.
The fact that John was flying an ultralight shows that he had his feet firmly on the ground, and his mind firmly in the heavens. May all his future landings be soft.
Skua