I don't think it's reasonable at this point that git's underlying model ever changes substantially. Essentially, it is the interface that's stable over time. I

I don't think it's reasonable at this point that git's underlying model ever changes substantially. Essentially, it is the interface that's stable over time. It's also the easiest way to understand git. You could learn to read by memorizing the shapes of thousands of words without learning the alphabet or how it matches up to sounds. I'm sure people have done it. But the failure mode when encountering a new word is complete and utter bewilderment that this new shape is unfamiliar, rather than a graceful degradation you get if you understand the alphabet. The same is true of git.