One of the qualities of “fractals” in math is that something that seems very simple actually contains an infinite depth of complexity. As you increase the zoom factor on a fractal it just reveals more and more detail. Think about a fern. When you look at a fern from a few feet away it appears to be a normal looking plant with leaves. But if you look more closely you’ll see the leaves are actually more like smaller versions of the whole fern, and these “subferns” have there own leaves, which are again small versions of the whole fern. Like so:

What does this have to do with Dominance and submission? I think that one of the things that drives those of us into this whole dominance thing is a desire to strip away the thick social layers that interfere with and occlude the omnipresent primitive and powerful sexual dynamics at work in romantic relationships. At some power level, for example, the first one in a relationship to say “I love you” has put themselves in the weak position simply by being the first one willing to go out on a limb, to bare their throat. The last one to say “I love you” before a relationship ends is also the weaker. The other member of the relationship has already moved on emotionally.
This goes back to my post on the difference between implicit and explicit power. The first and last to say “I love you” in a relationship are implicitly weaker. People into D/s just want to do a big burn off of all that silly dancing around the point and make it all very clear. I am weak. You are strong. The difference between our power excites us, and we want to use it in clear dramatic ways.
On the face of it this appears to dramtically simplify things. But, because human behavior is fractally complex, it just digs down to a deeper level that is just as interesting and sometimes difficult. Obvious questions just scratch the surface, like is the sub trying to manipulate the Domme? Does the Domme actually care about the sub? Should they? Is physical punishment really a punishment if the “punished” person likes it? Etc. Etc.
Yes, it’s more fun for the power structure to be simple and clear, even cartoonish, but that doesn’t mean the complexity has been worked out of the system or that fractions have been reduced to their lowest numbers. I think sometimes people clueless about power exchange don’t get this.
Meanwhile people in vanilla relationships should do themselves a favor and try to identify the lines of force that are going on just under the surface before it jumps up and bites them in the ass one day.