What about the cultures that either don't use or don't have technology in abundance? If someone who only knows how to communicate via some device finds themselves in a non-tech culture, and they don't speak the language, how do they navigate that community?
Also, what happens if a non-handwriting person has a spectacular idea but their battery has died? How do they record/remember that idea?
I'm no Luddite, I teach technology, perhaps that's why I'm familiar with the failings of it.