| Type | Fictional scenario |
| Origin | Imaginary |
| Themes | Social segregation • Biological determinism • Futuristic societies |
| Timeline | Alternative |
| Societal roles | Segregated in education, work, and society • Roles determined by innate skills and characteristics |
| Biological classes | Primaries • Secondaries • Tertiaries |
| Predominant abilities | Enhanced physical abilities (Primaries) • Superior mental capacities (Secondaries) • Unique emotional and artistic skills (Tertiaries) |
In this alternate timeline, the concept of "class" is not tied to socioeconomic status or hierarchy, but to distinct biological and cognitive categorizations. Humanity is divided broadly into three classes, each with its own unique traits and capabilities:
The Primaries (often referred to as "Primaries" or "P-class"): Primaries are humans naturally adapted for physical labor and military service due to their exceptional strength and durability. They are typically tall, muscular, and robust but with relatively lower levels of mental aptitude. Primaries tend to excel in fields requiring manual labor, construction, or physicality, such as farming, mining, athletics, and armed forces. They are the workhorse of their respective community, ensuring its physical well-being and often serving as builders, protectors, and providers.
The Secondaries (often referred to as "Secondaries" or "S-class"): Secondaries possess superior cognitive abilities, including high intelligence, creativity, and innovative thinking. They are generally smaller and less physically robust than Primaries but have advanced mental capabilities. The Secondaries are often inclined to intellectual activities and excel in fields like programming, engineering, science, mathematics, and the arts. They are typically responsible for the advancement and innovation of their community, unlocking new understandings and technologies that drive progress and society.
The Tertiaries (often referred to as "Tertiaries" or "T-class"): Tertiaries possess exceptional empathy, charisma, and group-oriented thinking. They are typically physically average but have strong social and emotional intelligence, with heightened ability to understand and communicate with others. They are often leaders or support figures in various fields, including government, business, community service, and education. Tertiaries excel in creating social systems, infrastructure, and support networks that enable the smooth functioning of their community. They are well-suited to roles in leadership, diplomacy, and facilitating group collaboration.
Although people predominantly fall into one of those three categories, there are occasional outliers with traits straddling multiple classes. These exceptions are rare but contribute to the understanding that those class differences do not necessarily impose strict boundaries between groups. In many communities, individuals are segregated by class to some extent for the purposes of education, work, and socialization; however, it is not uncommon for people from different classes to interact and work together in the realms of business and diplomacy.
The understanding of distinct classes has led to cultural and historical developments within this alternative timeline that diverge from ours. From the inception and codification of the three classes, they have played a significant role in shaping sociological, economic, and political structures throughout the course of history. This aspect of the alternate timeline means that global events have unfolded in ways often unrecognizable to us, but with many of the same achievements and struggles experienced within humanity.
