Umm, either I'm misunderstanding or this holds for nearly every UI everywhere, no? Like if I click "reply" on HN I'm moved to the screen I now type this comment in. That means my current state depends on history, too, no?
If you click "reply" and copy the resulting link, there is no difference in behavior if you go straight to that link vs clicking "reply" to get there instead
Think of a state diagram: "you are at the reply screen" is one and only one state. "The tooltip is shown" is a behavior of more than one state, with different paths to get to those states
