In his work, Noam Chomsky emphasizes how media shape public perception by framing discussions around a set of predetermined assumptions inherent in the propaganda system. These assumptions cover various topics, including the Cold War, the economy, and the concept of national interest. By presenting debates within this established framework, the media fails to challenge the underlying ideas, instead reinforcing them as the range of acceptable opinions. This creates an illusion of diversity in viewpoints while actually perpetuating a narrow perspective.

This process serves to deeply embed these assumptions in the public consciousness, suggesting that the media's role is not merely to inform but to maintain a status quo that aligns with specific ideological beliefs. As a result, individuals may come to view these perspectives as the full spectrum of acceptable thought, limiting critical analysis and genuine dialogue about alternative ideas. Chomsky's insights highlight the need for awareness of how media can manipulate perceptions and the importance of questioning the narratives presented to us.