Blogs/Twitter/Facebook and all the rest are too linear.
This site attempts to represent text and photos in a way that mimics the unpredictability of memory and thought. Writing from the past will appear mixed with writing from today. A thought from today may not be immediately interesting, unless somebody else engages it. Topics of thought sneak into the frame like reminders; it's up to the author to take the bait, or not.
Posts, like thoughts, cannot be changed once they're birthed. They can be connected to later thoughts, leading to more relevant, fleshed-out thoughts at every step.
Posts from other places connected to you appear on the right, floating into view based on the content on the current page.