We already saw that any model evolves independently, by itself, based on the
information taken from external reality or from others models. The aim of any
model is to gain its stability. Once a model has a problem, it will continue
to be active up to the moment when it regains stability.
There are some problems without solution. The model will continue to look for
a solution forever. This activity can produce negative effects on the overall
stability of the structure of models of the brain (it consumes a lot of
energy).
The main problem without solution is death (human beings only).
This is a basic problem. So, there is a model which predicts the death of a
person and that model has no solution to the problem. When there is no model
to solve a problem, the PSM is activated. The PSM has no solution too and so
it will make a specific model to solve the problem. But the new model has no
solution either, and so, a dangerous loop is activated. This activity could be
very dangerous for the stability of the structure of models of any mature
human being.
Since the oldest times, the human beings found a solution: shielding models.
A shielding model is a model, which is made to prevent a normal model from
activating the PSM and also to transmit to the model with problems some
information to stabilize it.
The best-known shielding model is religion.
Observation: as a person becomes older and older, the prediction of death is
more and more precise. The person has the tendency to become more and more
religious. Also, when a population is under stress, it has also the tendency
to become more and more religious.
A shielding model is associated to a normal model which has problems. A
shielding model is not based on external reality. It cannot be included in a
normal model, as the normal model cannot include a model which is not based on
external reality.
The reality generated by a shielding model can be called "illusion".
The shielding model can be made for any problem without solution. Such models
reduce the nonsense activity of a brain and so, there is more energy to solve
the normal problems. But, such models could be also very dangerous. The
activation of a shielding model also deactivates the protection structure of a
person or at least some section of it.
The shielding models are the main models, which can pass from 'normal-to-PSM'
zone to PSM. Such changes could be very dangerous for that being, because some
protection models are deactivated forever.
The shielding models are partially integrated in the normal structure of
models and so, the structure can, partially, control them.