three knocks, three ways of not connecting
Context
Three heads appear at Hal's door and the scene rings three changes on failed contact: banter that deflects (Troeltsch), private code-shtick between intimates (Pemulis), and finally pure wordless mutual regard (Wayne), each gap measured out in the breaths Hal is privately counting. Performance of okay-ness is Hal's only outbound channel, and it shades by degrees into silence — the horizontal, sunlit, breath-counting inwardness that the last hundred pages of his life will become.