a non-linear concept which varies based on differing cultural and social class related factors, which in actuality makes it entirely relative.
Also both used and misused as a tool of teaching. Misused most prominently in history, but also on a large scale in dystopian cultures such as North Korea, and on a smaller scale in niches such as religion and atheism.
Yet without the concept of common sense, we'd be pretty fucking lost as a society in which no one person is the same. At least with common sense, people have a sense of direction. They're just not sure where exactly it is headed.
Is common sense out of alignment to the knowing, a knowing. Are we talking about sensory perception and intuitive perception, where does emotional and intellectual perception start and end in regards to common sense?