Knowledge is constantly decaying. The knowledge that decays from your awareness can be brought back when it is requested. As long as the information has been studied enough for it to have stayed up to the present moment withing your long term mental information storage.

It has been seen that information lost from awareness is still information possessed by the self, in a form of storage that can be accessed when the information is prompted from it. This form of information storage has shown to not be usable during any activity other than the retrieval of information from it into awareness.

For the optimal doing of present activity, maximum information relevant to its completion must be known. When engaged in an activity, a link to a piece of information can be made. Something that connects your awareness to a certain piece of information relevant to that which you are doing. This may be achieved with terms that are assigned to the information piece, making it so that declaring the term brings the information into awareness.

If assigned terms are the only things rehearsed, the source information will gradually decay until the term become empty. The securing of source information must be incorporated into activity. It is achieved through repeated creation of it. The duration that it will last in memory and the ease of its retrieval will depend on the amount of repeated creation performed, though there may be a plateau of effectivity at a certain point. This plateau may be noticeable through feeling the familiarity of the information no longer increase.