I really like the design and look of throwww, and I don't mean to pick on it - but every time I see these minimalist low-friction writing engines, I feel like a very big thing is missing; facilitating editing, and encouraging a greater purpose for text.<p>Something I'm reminded of every time I reach the bottom of a pg essay, or every time I look back on the writing I'm most proud of, is that time was taken to consider and craft the text. Crucially, the text - and its ideas - was shared with others, feedback was gathered, and the text further refined.<p>Low-friction composition is important; it's a huge boost to have a simple clean slate with which to begin. But often once that initial effort is over with, good writing becomes a work of careful refinement. Here's some things I haven't found in any platform that would be great;<p>1. Full revision history. Every keystroke I've made, every tiny little edit should be saved. Everything. In order. Everything. This is a small data problem.<p>2. Once I create some text, I'd like to be able to share it privately with my trusted testers and feedbackers. They should be able to highlight text and make notes in-place. If I trust them enough - or they are an actual nominated human editor - they should be able to edit the text.<p>3. Some guidelines for good clear writing are automatable. An editor could tell me when a sentence is getting very long. An editor could detect obscure or imprecise words and suggest alternatives. An editor could detect repetition of mundane words or phrases. You get the idea ... the point is that real work can be done here.<p>4. It would be nice to be able to make margin notes, and to track goals. It is common to sketch out in advance the purpose or goals of a text; the outline and key points to be included. It'd be neat to be able to check them off as progress is made.<p>Or in summary; it'd be nice to see a tool that took as its goal that writing itself can be made more effective, rather than merely prettier.