Dialectic Youth
According to Wikipedia, the first recorded instance of “OK boomer” was in a Reddit comment on September 29th, 2009, almost 15 years ago. Younger Americans, like all the generations before them, need to form their own identities, and often, that means an outright rejection of the values and cultural norms of their parents and grandparents. This phenomenon is an example of a dialectical process in which the status quo produces its own contradictions. This natural tension can lead to a higher level of truth as the contradictions resolve themselves into progress.
