Diagonal measurements are meaningless. I can make an infinity-inch screen that takes up no space. All "6 inch" means is "no dimension is larger than 6 inches".
Whatever is `1000" long`, hardly "takes up no space". We can go on about theoretical size, etc. In practice 1000" is a lot and not possible to comfortably store in any way by an average person.
I don't understand what you meant by that. It's going to take infinite space...