The Call: The conceptual problem was harder than the technical one. A buy alert has no story and no information to deliver, it just has to register. The ring is what makes it work: it reads as a closed system, and the single coin breaking formation is the only movement on screen, so the eye has nowhere else to go. Loop it at 7 seconds and it becomes a signature rather than a notification. Repetition was the constraint, so the piece was built to be recognised, not read.