Ha! This made my mind wander back in time. Back in the 90s, Indonesia witnessed the springtime of the success of adapted novels from renowned authors such as Agatha Christie, Sydney Sheldon, Enyd Blyton, and others. At that time there was a series of adventure novels that offered different possibilities for storylines. I once read, among others, the adventure story of a group of pilots in space, after the story runs a few pages, they find two alternatives, the reader decides which alternative to take, each alternative points to a specific page of the novel. Likewise, each alternative chosen will later also experience the same thing, the story branches out and finds different reactions to each different decision made by the reader. And of course, and that's the fun of it: all possibilities can be explored.

Perhaps I give the talking a chance one day, although I don't see myself writing letters and e-mails with it.

I guess these kind of apps only good for re-typing of the large amount of text. I also know some writers use a recorder to record ideas that suddenly come to mind. They always have these mini-recorders (like journalists have) nearby, because it's easier to capture ideas while it's still "warm" than to write them down.

... perhaps it's helpful if I can no longer lift a finger and am blind?

Haha.