Stylized facts

Here is the Wikipedia article on this topic.
A useful synonym might be ‘snap-fit fact’.
Stylizing facts is convenient, and even necessary, but drawing the line at too great a distance leads to cognitive breakdown, by ignoring corners and special cases that technical competence must take into consideration. For example, it is often tossed off as a ‘fact’ that the Earth experiences day and night due to its rotation. However, for the Earth to experience day and night it is neither necessary nor sufficient for the Earth to rotate.