 All this evokes Russell’s talk of relations having dual nature, i.e., being able to occur as terms of relations as well as relating relations. The trouble with such dual roles, is to explain, as Bradley asked Russell: “What is the difference between a relation which relates in fact and one which does not so relate?” (Bradley 1911: 74). Or for Meinertsen: What is the difference between a relation occurring in its passive role and it occurring in its active role? If we are willing to accept as a primitive that there is such a difference and that it is thanks to U*’s dual role as a self-relating relation that it is able to unify constituents of a complex a, b, and R, then why exactly is such a view an improvement upon a view that takes it that a relating relation R simply relates its relata?