It doesn't matter if you've learned git's data model or not; its use of terminology is inconsistent and confusing, and its command interface is disorganized and asymmetrical. In that way, I suppose it is very much like a "natural language", and not like the sorts of languages we are more accustomed to using when getting things done. Even if I know exactly what I want to do to the data structure git is managing, that doesn't help me find the commands I need to type to accomplish it. I have been using git for ten years now and I still have to rely on rote memorization of specific recipes in order to get anything done, which sucks because I am terrible at rote memorization.