[Generations] are defined as groups of people united by time and space who, through a kind of collective meaning attached to historical event, behave in unique ways that last over their entire life span
Mannheim defined a generation (note that some have suggested that the term cohort is more correct, to distinguish social generations from the kinship (family, blood-related generations) as a group of individuals of similar ages whose members have experienced a noteworthy historical event within a set period of time.
According to Mannheim, social consciousness and perspective of youth reaching maturity in a particular time and place (what he termed "generational location") is significantly influenced by the major historical events of that era (thus becoming a "generation in actuality"). A key point, however, is that this major historical event has to occur, and has to involve the individuals in their young age (thus shaping their lives, as later experiences will tend to receive meaning from those early experiences); a mere chronological contemporaneity is not enough to produce a common generational consciousness. Mannheim in fact stressed that not every generation will develop an original and distinctive consciousness. Whether a generation succeeds in developing a distinctive consciousness is significantly dependent on the pace of social change ("tempo of change").
Mannheim notes also that social change can occur gradually, without the need for major historical events, but those events are more likely to occur in times of accelerated social and cultural change. Mannheim did also note that the members of a generation are internally stratified (by their location, culture, class, etc.), thus they may view different events from different angles and thus are not totally homogenous. Even with the "generation in actuality", there may be differing forms of response to the particular historical situation, thus stratifying by a number of "generational units" (or "social generations").
Over the years, the Spotify algorithms have correctly identiﬁed that I tend to like “chill” music of a certain BPM ...
When I design online ads for American Apparel, I almost always look for an angle that will provoke. Outrage, self-righteousness, and titillation all work equally well. Naturally, the sexy ones are probably those you remember most, but the formula worked for all types of images. Photos of kids dressed up like adults, dogs wearing clothes, ad copy that didn’t make any sense—all high-valence, viral images. If I could generate a reaction, I could propel the ad from being something I had to pay for people to see (by buying ad inventory) to something people would gladly post on the front page of their highly trafficked websites.
But entertainment has the merit not only of being better suited to helping sell goods; it is an effective vehicle for hidden ideological messages. Furthermore, in a system of high and growing inequality, entertainment is the contemporary equivalent of the Roman “games of the circus” that diverts the public from politics and generates a political apathy that is helpful to preservation of the status quo.