It may be a question of having more precise purposes. Perhaps you have many purposes per book. I think that the PR process enables you to achieve each purpose more rapidly. In a way, PR is a more organized and efficient form of reading. It is reading organized by purpose, using the OTC mind. I think that once we practice it, we will find a use for it. We don't have to set aside our old way of studying, however, if we don't want to.