2.d.2. Human brain structure and efficiency
The efficiency of the brain structure is easily observed as much in intelligence as in memory. The first supports itself on the second so as not to unnecessarily repeat a multitude of operations; it even reaches the formation of what we could call subprograms of automatic action, like the pre-defined responses to different situations when driving.
We could assume that almost half of the memory is devoted to storing information about support relations directly to intelligence, independently of the information from perceptions is found stored in accordance to a system of multiple references or not.
Likewise, the memory, or better said, the memory manager, will try to save only the information it considers relevant, that which does not already exist or save similar information together, only adding a new nuance to already present information. Further along, we will return this subject when discussing types of memory.
2.d.3. Utilization of idle resources
It is possible that conscious thought is not unique, that is, that not all of it follows the same line of argument, there may be two or more lines simultaneously. Moreover, we believe that the human brain structure is designed to allow almost at least two. It would be like the existence of a somewhat conscious thought that is, however, in the background.
It should not be confused with situations when we are thinking about two things at the same time; in this case, the two things are in the foreground of thought.
On the one hand, it is taking advantage of the system's idle resources, and on the other, we would always have an idea in mind when we decide to stop thinking about something or if we obtained our goal by reasoning.
A blank mind can be attributed to two simultaneous thoughts ending at the same time, although we think this usually happens because we try to go back in a sequence of thought; this is not always easy or feasible.
The fact that computers already do something similar and that they are becoming more and more complicated needs no further explanation.
2.d.4. Maintenance of cognitive capacity
Given the complexity of the rational system of human brain structure and the necessity to maintain an optimum operational capacity about the temporal horizons of information, the system needs to reorganize itself daily. While sleeping, we perform a significant amount of the cleaning function.
The fundamental reason why we need to be asleep may be that it is a time when the working memory and the relational capacity are free from a multitude of tasks and that for the exploitation analysis of daily experience stored in the brain faced with its possible memorization, the brain needs to use the two abilities intensively.
Dreams widely represent the work that the memory manager performs when storing specific information. When it does not know what to do, because it lacks sufficient information, it recreates a situation and tries to force the intelligence to choose; this decision affects the way we memorize the information. In this fashion, it will clean short-term memory not losing information considered relevant or feel obligated to save all information related to a specific subject provisionally.
When intelligence does not manage to offer a clear decision for complex subjects, people may have recurrent dreams. Indeed the subject is noteworthy, and the adopted solution will affect on the saving of much other information in different places in the memory, or it will affect the configuration of one of the dimensions where many references are situated.
The difficulty degree of some relational problems may be so high that, at certain times, the quickest solution to a problem is to forget it and try it later, especially after sleeping. Any experienced programmer knows that faced with an elemental problem that seems irresolvable, one always has to try to shut down the computer and try it again.
In the first case, after sleeping, the short-term memory has been cleaned due to the way the human brain works. When it analyses the problem again, it will load every data related and in agreement with the priorities of each element; then, the analysis to be notably simplified.
After restarting a computer, all the programs and variables in the memory have disappeared, and the computer will load into RAM only the necessary programs and variables. The restart assures there is free space and that none of the variables have erroneous values from multiple tests performed by a programmer.
Another yet different example of the way human brain structure works is the human eye. The eye adapts best to sudden changes in luminosity by opening and closing the lids, that is, by restarting the system. The latter is vital for those who drive for long periods of time at night. The light from cars coming from the opposite direction and those that pass provoke sudden changes in the luminosity that can be tiresome for the eyes.
However, it is fascinating to check that, if when faced with a sudden change in light the eye blinks right at the time of the change, eyes fatigue and the discomfort that people suffer is reduced at least to one third. There must be mechanisms adjusting to luminosity and do not cause eye fatigue; we imagine these mechanisms are optimized to work starting in the darkness and are therefore more efficient when given the appropriate circumstances.