One cannot expect that a direct measurement of one particle in a coupled state would mean this would bring about any changes in the other particle. But perhaps in some ways, those changes can be achieved. Perhaps, in order that measurement of particle a have any effect on particle b, the measuring apparatus must mimick the photon. The reason is, each particle a and b has potential. Not all of these potentials will be realized however in a single time-frame. The photon therefore, posessess the most potential. It has to be ready to serve data about particle a behaviour to the observer. So, rather than to begin with arbitrary measurement of particle, one begins with a series of arbitrary measurements of the photon. After arbitrary measurements on the photon have been made, the result should be a series of potentialities, pertaining to the photon and therefore particle a and b. Throughout this measurement process, information acquired about particle a, directly affects particle b. It is unlikely one would gain a classical measurement, though at this stage not impossible. The more arbitrary measurements are made on the photon, the closer one gets to a full description of both particles. That is to say, an observer at particle a, making a measurement would have no effect at all on particle b, because of a resitriction in potentialities.