There is a philosophy that says that if something is unobservable -- unobservable in principle -- it is not part of Science...By that standard, most of the universe has no scientific reality -- it's just a figment of our imaginations. ~ Leonard Susskind,~
The overall presentation and the images within this pin represent "gestalt" by symmetry. The gestalt concept says that objects must be balanced or symmetrical in order to be seen as complete or whole. Not only are the images symmetrical, but the presentation is as well.