You can't die with an unfinished book.
As far as I'm concerned, I'm a writer who's writing books, and therefore, I don't want to die. You'd miss the end of the book wouldn't you? You can't die with an unfinished book.
I think perhaps the most important problem is that we are trying to understand the fundamental workings of the universe via a language devised for telling one another when the best fruit is.
An author writes a book, and that's the book at that point. And if the author writes the book again, then somehow something has gone wrong, if you see what I mean.