This site is about carefully engineered social environments.
In general the expression social engineering describes something abhorrent, an aspect of fascism, but in a few specific cases it seems necessary and can be humane. This includes schools, where the assignment of students to specific classes seems necessary, and prisons, where the social environments of the prisoners must be well controlled. It even applies to the workplace, for corporations with a large enough number of employees are available and need to be assigned others to work with.
The illustration above reflects two social environments. On the left is a classroom. It is in fact a highschool classroom, a place where ordinary people learn, often with some optimism for a bright future. On the right is a jail cell, a place where prisoners exist, often with little to look forward to in life.