I like the idea and love the simplicity. Not sure if I would benefit from not looking and editing as I write as I tend to do that all the time, but I'm going to try it with this and see how it pans out.
I found that I had the best success getting my thoughts down on the paper when I told myself not to look back and edit. So I decided to do an experiment and made a mini-webapp to do this.
In the app, you can only see the current line you are typing, and you are allowed three backspaces at a time (combinations are allowed).
There's also a visual of blurred text in the background to help you feel like you are achieving some progress.
This was just a fun experiment, but I wanted to get some feedback to see if people actually would want to use this sort of thing.
Yeah, that was intentional. Maybe it's not for everyone, but I just want to say that it's not that you never edit. The point is just to get your thoughts down on the page first.
I used this to write my first book and it took 48 hours. And then I spent months editing it before I published it.
Great job!