As I said in an earlier post I lived and worked in a remote part of Nigeria in the 80's. There were no phones. There are now. Mobile phones. Technological advances have made it much easier for remote areas to have communication.
I was presented with an image of someone reading one of my books on their mobile phone recently. It immediately made me think of Nigeria and other parts of Africa I've visited. There were no phones in northern Nigeria when I was there. Neither were there books. Now there are both, together.
That doesn't mean we don't need books of the paper kind too. Although having been in charge of the company library - a room in the clubhouse opened two nights a week, I can vouch for the fact that books fall apart rapidly. The glue simply disintegrates in the heat. Books are lucky to last a couple of months. Termites also eat your shelves.