By saying common sense, there is an implied and assumed common experience that provides a common knowledge. There used to be a shared library that people within a society understood.
One could start a sentence expecting the audience to accurately finish the story. For example, the emperor is naked. If you are not familiar with the plot, your mind has no way of comprehending the meaning. In another vein, stories with characters known to be villains have become our heroes.
For instance, some of us applaud that the wolf has devoured the young boy. It is not that we did not care for the well being of the child, we just grew tired of him tricking us, constantly yelling about things. The absence of his noise is peaceful.
This was my reaction to an article in Scientific American. “Botanical Sexism Cultivates Home Grown Allergies.”
I don’t care. I recognize this language and have no interest in where it leads. No offense to the boy, but his cries are annoying. Oh, is he dead? Okay.