This article theorises 'the new paradigm of mass communication ' and 'the media scenario ' and examines Kurt Vonnegut's concept of the 'shapes of stories' as a key to understanding the new paradigm of mass communication and the logic of the media scenario. Revisiting Vonnegut's early and long-dismissed insight that narratives can be mapped as simple movements between good and bad over time, the article situates his graphical models within contemporary media environments dominated by platforms, algorithms, and participatory storytelling. Drawing on Vonnegut's diagrams and their later empirical confirmation through computational literary studies, the article argues that narrative simplicity is not a reduction of meaning but a structural condition of emotional orientation. In digital culture, these basic narrative arcs migrate from literature into journalism, politics, and platform media, where they function less as representations of reality and more as behavioural templates that organise attention, expectation, and collective emotion. The article further proposes that media scenarios increasingly impose pre-structured emotional curves onto public life, transforming events into recognisable plots and citizens into participants within scripted arcs of crisis, recovery, decline, or ambiguity. Vonnegut's insistence on the straight line—exemplified by his reading of Hamlet as an emotionally flat narrative—is interpreted as a critical counterpoint to contemporary dramatisation: a reminder that life itself resists narrative closure. By linking narrative form, emotional rhythm, and media power, the article reframes Vonnegut's playful diagrams as a serious theoretical tool for analysing how stories shape not only meaning, but social time, moral judgement, and the experience of reality in the age of mass communication.