It looks like a fairly inefficient way to write to me. What I've learnt is that writing and editing are two different things, and you shouldn't edit as you write. So you write a first draft quickly, without worrying about the exact words too much, and then edit. The reason this is better is because writing and editing use two different brain "modes" - writing is best done in diffuse mode because it is creative, whereas editing is best done in focused mode.

It's certainly different from how I write. I do most of the repeated rewriting of each sentence in my head before typing it out, rather than after it's down. I'll go back and make edits, but generally only once a logical block is finished and I can read it all together.

That's the cool thing about this; there's normally not much way to know how other people go about the process of writing.

Well, it's certainly different from Hemingway two-finger typing on a manual typewriter. Or, Jefferson writing on (expensive) paper with a quill pen and iron-gall ink, with only the occasional overstrike.

Supposedly, Kerouac wrote On the Road on a manual typewriter fed with a continuous paper web.

So, yeah, different. Instead of composing a sentence in your head and then writing it down, you waste a lot of time editing it in place. It seems very disorganized to me.