You can, and people do that today. It has limitations though: * The data must be sorted in order for Git to provide good diffs * It does not scale very wel

You can, and people do that today. It has limitations though: * The data must be sorted in order for Git to provide good diffs * It does not scale very well. On my machine, Git refuses to diff files over 1GB (maybe there is a setting for that) * You must clone the entire repository onto your machine to work with it * There is no programmatic API -- you must work with the data and changes as text and line diffs See https://www.youtube.com/watch?v=Zeg9CY3BMes https://www.youtube.com/watch?v=Zeg9CY3BMes for a little bit more on this topic.