[[Classroom]] Lecturer: And therefore, based on the existence of a Hamiltonian path, we can prove that the routing algorithm gives the optimal result in all cases. Man: Oh my God. [[Close-up of Man]] (Out of frame): What? What is it? Man: A sudden rush of perspective. What am I doing here? Life is so much bigger than this! [[Man Running out of Room]] Man: I have to go. [[Man enters darkened room, where woman waits by window.]] [[Man and woman embrace...]] [[...and get into bed.]] [[A heart appears over the supine bodies]] Woman: Ohh... [[Hands <>]] Man (out of frame): Wait a moment. Woman (out of frame): What is it? [[Silence]] Man (out of frame): His proof only holds if there's a Hamiltonian _cycle_ as well as a path! Woman (out of frame): ...excuse me? Man (out of frame): Paper, I need some paper. Man (out of frame): Hey, do you mind if I jot down some notes on your chest? {{title text: The problem with perspective is that it's bidirectional}}