[martininmelb]

So, maybe this is more useful?

Unlike more primitive version control systems, git repositories are not linear, they already support branching, and are thus best visualised as trees in their own right. Branches thus become trees of trees. To visualise this, it’s simplest to think of the state of your repository as a point in a high-dimensional ‘code-space’, in which branches are represented as n-dimensional membranes, mapping the spatial loci of successive commits onto the projected manifold of each cloned repository.

(Quoted from tartley.com)