  Myrvold (2002b) argues that state collapses can be reconciled with Minkowski spacetime even without postulating multiple different collapses corresponding to different reference frames. That is, he argues with respect to the EPR/B experiment that the collapses induced by the L- and the R-measurement are local events in the L- and the R-wing respectively, and that the supposedly different collapses (corresponding to different reference frames) postulated by the hyperplane-dependent theory are only different descriptions of the same local collapse events. Focusing on the state of the particle pair, the main idea is that the collapse event in the L-wing is modeled by a (one parameter) family of operators (the identity operator before the L-measurement and a projection to the collapsed state after the L-measurement), and it is local in the sense that it is a projection on the Hilbert space of the L-particle; and similarly, mutatis mutandis, for the R-particle. Yet, if the quantum state of the particle pair represents their complete state (as the case is in the orthodox theory and the GRW/Pearle collapse models), these collapse events seem non-local. While the collapse in the L-wing may be said to be local in the above technical sense, it is by definition a change of local as well as distant (spacelike) properties. The operator that models the collapse in the L-wing transforms the entangled state of the particle pair—a state in which the particles have no definite spins—into a product of non-entangled states in which both particles have definite spins, and accordingly it causes a change of intrinsic properties in both the L- and the R-wing.