Incomplete Information and Public Opinion Reversal in Online Public Events

Abstract

Online public events often develop through incomplete and unevenly distributed information. Short videos, screenshots, personal statements, and reposted fragments can quickly shape public judgment before the full facts are known. Once a clear moral narrative forms, comments, repeated sharing, and media coverage may make the first interpretation appear more certain than the available evidence allows. Later recordings, official findings, or responses from other parties can overturn this interpretation and produce a rapid reversal of public opinion. This paper examines how incomplete information contributes to early judgment, how new evidence changes the public narrative, and why reversal often creates a new target of blame rather than a more careful understanding of the event. It also considers the role of platforms and news media in widening the visibility gap between early claims and later clarification. The paper argues that repeated reversals can cause reputational harm, intensify online hostility, and weaken trust in public communication. More responsible communication requires clear distinctions between confirmed facts, personal claims, disputed information, and unresolved questions.