This is pretty cool. Worth noting that Git does not actually only store full copies of files every time you make a change, this article I found does a really good job at explaining Git's packing: https://gist.github.com/matthewmccullough/2695758
“Objects” rather than “blobs”, in git “blobs” means specifically file contents (/ unstructured as technically you can use blobs for arbitrary storage) but all objects can be delta’d during packing.
