This is actually a rather neat visualization. If you open the demo and wait (and wait) you'll eventually get a document that's assembled from different texts. H

This is actually a rather neat visualization. If you open the demo and wait (and wait) you'll eventually get a document that's assembled from different texts. Hold down the space bar and press up/down to scroll through it. Each time you scroll, you land on another segment. If it's a segment from the left, press space+left to shift over to it. Likewise, space+right to go to the right. Mouse scroll also works for smaller increments, and you can also click on the parallel documents. Other than the visualization, I'm unsure how much it really accomplishes. The recent submission, the Leo editor [1], follows a similar premise but for a much more interesting result: to generate python code. Leo is also an IDE; this is appears to just be a renderer. 1 http://leoeditor.com/ http://leoeditor.com/