I find bzr and hg weird for the same reason that I never understood svn: I don't know what the hell they're doing. Because git is simple in its basic structure

I find bzr and hg weird for the same reason that I never understood svn: I don't know what the hell they're doing. Because git is simple in its basic structure I feel like I can understand what's going on. With bzr/hg/svn, I just have no idea what's going on, I have no idea what the tool means by words like "checkout" and "revert" and "update"; they're just too vague.