 Finally, Stein proposes that the relation \(R\) not hold between every two points in the spacetime. That is, he proposes that given some choice of spacetime point \(x\), there is at least one distinct point \(y\) that has not become, that is not already definite, with respect to \(x\). But is there a relation that has all these intuitively desirable characteristics? The answer is yes. The relation is that between a point \(x\) and each point in or on its past light  cone.[12]  If one can accept that the relation \(Rxy\) represents in special relativity the notion of becoming (or, having become), then the existence of the relation specified and found by Stein is a formal refutation of the Rietdijk-Putnam-Penrose argument for chronogeometric fatalism.