I have built https://FileMonger.app https://FileMonger.app (which keeps a diffable undo history of a file) exactly after becoming skeptical as you are. After a

I have built https://FileMonger.app https://FileMonger.app (which keeps a diffable undo history of a file) exactly after becoming skeptical as you are. After a bit of research I've figured that main need for this kind of focus is fear of the document changing too much, to the point where the current idea for an edit will no longer relevant. Apps such as OP try to solve it by hiding the problem, while with FileMonger the writer gets a guarantee that they can revert to any save at any time, if document indeed changes too much (it usually doesn't). If you've mentioned vim and technical writing you're probably writing plain text files and are knowledgeable enough to use manual version control like git when necessary, which is why this baffles you.