Today, rents, when they're talked about in economics, is just an imperfection towards a competitive price that could be competed away if you take away some asymmetries.
The reason that did not happen must be that matter and antimatter are not, in fact, perfect opposites-and that something in the asymmetry between them allowed matter to prevail.
So we take the real face of a subject, we reduce the complexity, because not everything is in your face -- lots of features and defects and asymmetries come from your life.