How social media and influencers transform our shared reality

Shaping Public Opinion: Crash Course Government and Politics #34 · 7:21 · Video: CrashCourse · Watch at the source

In short: Public opinion is no longer just a collection of beliefs; it is a dynamic ecosystem. In this digital age, the power to shape what society believes has shifted from traditional institutions to individuals who can turn rumors into reality through sheer repetition and viral engagement.

Historically, scholars like Plato, Aristotle, Hobbes, and Jean Jacques Rousseau viewed public opinion as a reflection of long-standing social practices and behavioral traditions. However, the modern landscape has fundamentally altered how these views are formed. While traditional media—such as newspapers, radio, and television—has long played a role in affirming existing attitudes, the rise of social media has introduced a new, more participatory dynamic.

In the current ecosystem, audiences are no longer just passive recipients of information; they are active participants. Through likes, shares, and remixes, individuals can determine which narratives gain visibility. This has elevated the role of the 'influencer'—figures who combine personal connection with the ability to drive massive narratives. Because they appear to be 'just like us,' influencers do not feel like traditional media, making their impact particularly potent.

This shift brings significant risks. Renee DiResta, a McCourt School of Public Policy associate research professor, observes that accuracy frequently loses to viral engagement in such settings. When content resonates emotionally, it can be propelled forward by crowds, sometimes amplifying divisive material. This can lead to a cycle where rumors harden into reality through constant repetition and validation, ultimately driving polarization and making it difficult for society to agree on basic facts.

The media's role has also evolved from institutional broadcasting to personal personification. In the United States, for example, presidential candidates have come to personify their parties, and technological advancements in electronic media have shifted elections from contests between parties toward personal struggles between individual leaders.

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