Consistently ranked in the top 10 fears of humans include the fear of public speaking and the fear of flying. The former is related to the fear of other's thoughts and the latter a fundamental lack of control over movement, direction, and time.
Whilst airborne, the hierarchy of reliance is combustion, lift, pilot and copilot, tertiary passenger intent, and lastly geomagnetic interference. Independently, nothing in this list tends to evoke a fear response. Aerophobia is a fear of flying or air drafts that often manifests during liminal phases. Liminality can be a disorienting phase of life whereby one experiences substantial changes to perceived prior normalcy. Despite overwhelming evidence of safety, neurochemical signals within the amygdala influences decision making.
During a speech, the audience has three decisions. They can agree with the content, disagree with the content, or feel neutral about the content. The latter two opinions may result in a reduction or elimination of relevance for the speaker. An emphasis on public speaking in education trends toward higher socioeconomic circles. The most important aspect of public speaking is wholeheartedly believing in the content being delivered. In certain contexts, the phase, "seldom right, never in doubt," characterizes individuals held in high societal esteem due in large part to the forceful delivery of a message. Absconding objectivity in deference to the loudest voice routinely occurs in society. Manipulation of this tendency can result in a power differential. Many past and current leaders lacked analysis and intellect but excelled at communicating which resulted in gaining societal power.