>They don't do 'diffs between these 2 png files' or 'diffs between these two .docx files' well or at all. I recently added an option to my gitconfig to allow d

>They don't do 'diffs between these 2 png files' or 'diffs between these two .docx files' well or at all. I recently added an option to my gitconfig to allow diffing .docx files. My ugly 2-minute hack with Git is still miles ahead of the built-in Word history tracking. Ironically, to facilitate the diff, .docx is internally converted to text, once again showing how powerful it is to have a common denominator. On the topic of diffs, I think we still have not exhausted the full potential of text-based formats. Just because the inputs are text streams, doesn't mean the diff algorithm has to be dumb. As long as it emits readable output, it doesn't matter what it is doing internally (like parsing C code, detecting renames, etc.)