Its All about Pj Problem Strings - 7 Spaces Of Interest and their associated Basic Sequences; 7 Pj Problems of Interest (PPI) and their Alleles (A)
A wall is a barrier that encloses a space. A wall does not have to be visible to the naked eye. The structure of a wall and the material used to build it may vary from space to space but its enclosure property is universally constant. A space without a wall implies that the owner of the space does not wish to enclose the space or is unable to enclose the space (various reasons exist for this scenario). However, in general, spaces that contain valuable entities usually have walls that establish the boundary conditions of the spaces while simultaneously securing the spaces.
Nature is often the best teacher. By example, it often reveals the best templates for handling the various aspects of existence. One interesting template is how it handles spaces that contain important substances: it builds walls to enclose spaces that contain important substances. In fact Nature is unsurpassed when it comes to building great walls. Here are some examples of Nature's walls:
(a) Atmospheric Wall: it protects Earth from The Sun's Ultraviolet radiation. For example, the rays of the C category of Ultraviolet radiation ( UV-C) which is the most harmful, are completely absorbed by the atmosphere and 95 percent of the rays of the B category of Ultraviolet radiation (UV-B) are absorbed by ozone in the Earth's atmosphere.
(b) Cellular Wall: it protects the contents of the cells of bacteria, fungi and plants.
(c) Tree Bark: this is the wall that protects the inner space of the tree from external existential threats.
(d) Cellular Membrane: separates the interior of all cells from extracellular space. Selectively controlling the movement of substances in and out of cells.
(e) The Skin: It is the largest organ in the body and protects the body from various environmental hazards.
Humans have not done too badly in wall building. They have built and continue to build various types of walls to simultaneously establish boundary conditions and space security.
A protective wall that prevents illegal entry into an important space is a good wall. A bad wall prevents legal entry into a space and prevents legal exit from the space. As we have seen from the few examples from Nature, and by numerous other examples all around us, walls may vary but they are important boundary conditions. They are built to protect important spaces. They do not necessarily signify hostility or unfriendliness. An entity that does not secure its space increases the probability of loss of the contents in the space.
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