Steven Hawking is a hoax. I forget the names, but there were people trying to expose the whole thing as a propaganda psy-op. The disease afflicting him would have long-since rendered him a vegetable 2 decades ago. His "wife," that attractive UK blonde, isn't his wife - she's his handler.
The people out there trying to make the case for this had me convinced. I'd point you to youtube but I imagine content like this has already been banned.