My opinion of your grandpa being one of the cool ones is even more valid thenWell, I can only wish that I ever got to go shooting with him, or ask him what he did during the war. I hear his glasses disqualified him from combat, back then. But, he still would have fired a rifle in Basic, right?
He was an engineer the rest of his life, and it seems that he was fascinated with technology, in general.
CCO and ACOG sights are geometry problems that he would love.
My dad remembers Grandpa driving and, while stuck at a green light because people weren't going, Grandpa apparently said he thought there should be a system so the cars go when it's green, and it doesn't matter so much if the drivers are paying attention.
It sounds like, in 1980, Grandpa was wishing for networked self-driving cars.
My dad also says that in the 1980s Grandpa Munn basically predicted that someone would invent 3D printing.
I welcome the technological advancement of self-driving cars, better automatic transmissions, and the Mach-E.