Variations

After a Lecture

After a lecture, when everybody left, a residual message remains in a room. Fragments of content prepared knowingly by a presenter, questions and answers, discussion, conclusions, remarks, disagreement, applause, and gratitude, all are still in the air. Any sort of performance, from verbal communication made to share a message to an artistic spectacle generates an atmosphere in a room space, which can be felt even after everybody left. It may be hard to visually present those time-based events that can leave a track of importance.