ABSTRACT
As with any postulate on which theory is based, the predictions made by the theory are tested through experiment. e fundamental postulate has been extensively tested in this way, as we shall see, and is found to be a good postulate. e postulate is the quantum description analog of the classical ergodic hypothesis introduced in Section 4.2 of Chapter 4 in considering the path of the representative point through accessible regions in classical phase space. Over a suªcient time, all accessible regions are traversed by the representative point.
