I wonder if Hawking played pinball?
I recently rewatched the Theory of Everything film and it showed the guys playing pinball when they were in school.
I bet Ben Heck could have built a device that would have let him control the flippers with his eye/cheek movement!
My dad passed away from ALS and a good memory I have is playing pinball with him, even though I had to help him plunge and move his hands into place to use the flippers. It reminded me of playing arcade games with him as a kid.
RIP Stephen Hawking... I don't understand a word you have said, except for maybe:
"Women. They are a complete mystery"