gitk is great if you love subway diagrams and want a built-in tool for it. There's so much power in `git log --first-parent` and recursing into drilldowns that

gitk is great if you love subway diagrams and want a built-in tool for it. There's so much power in `git log --first-parent` and recursing into drilldowns that current UIs, including gitk, are bad at expressing as a workflow.