[thecupisblue]

>There’s more than enough to be achieved by just knowing the tree concept of git, and using a GUI to visualize it while running the basics - checkout, commit, branch, rebase, etc.

Oh, that's exactly what I meant. At least basic, high level understanding of the git model and basic operations on it. But most people never even get to rebasing or try do understand what lies behind magical buttons in the GUI.