The group contributes to the diffusion of responsibility, provide a measure of physical anonymity to their members. When the actions of a given individual cannot be determined, they are not evaluated. Specific individuals cannot be criticized when riot happens in a crowd, because no one knows whether or not which individual actually participated. In their anonymous identity, people’s behavior is more likely to be inconsistent with their attitudes. Therefore oftentimes, when under the influence of a crowd, individuals will display aggressive or unlawful behavior that they would not otherwise participate in.
The diffused responsibility and decreased self-awareness act as the indication of a wood and gasoline, whereas the reaction from the chemistry is the social arousal. Without the spark of social arousal, nothing happens. Based on the article, if the suspicion of the detectives was right that the cause of this incident is due to prior planning in the social media, then the discussion for the plan would act as the illustrative example of social arousal. Participants are curious and excited while getting intensely involved in the plan and already displaying a measure of arousal.
Here applies the concept of groupthink. Groupthink usually occurs within a group of people where their desires for harmony or conformity in the group results in an irrational or dysfunctional decision-making outcome. The teens did not think twice about their actions and the consequences realistically and in order to maintain the cohesiveness( nobody objects), the plan is operated smoothly. The outcome of the decision is irrational if one thinks logically, however, due to conformism and how the youths distort the interpretation of reality, they eventually succumb to the final decision. They get even more aroused when the real D-Day happens.