Evolution of our World. We always say that the objects (systems) exist in our World /Unietse/and they operate in it. Therefore it is necessary to give a definition of the concept “our World”. We call “our World” the greatest and universal system in which based on the law of hierarchy all objects exist as its subsystems which can be part of it without coming into conflict with the laws of conservation and cause-and-effect limitations. Such objects are target-oriented associations of systemic functional units (SFU, elements) – the groups of elements interacting with specific goal/purpose (systems, or rather subsystems of our World). These include both the objects which existed before and are non-existent now and those that exist now and will appear in the future as a result of evolution. Absolutely all objects of our World have one or another purpose. We do not know these purposes and we can only guess them, but they are present in all the systems without exception. The purpose determines the laws of existence and architecture (“anatomy”) of objects, limits interaction between them or between their elements and stipulates the hierarchy of both sub-goals and subsystems for the achievement of these sub-goals. But this architecture is continually found insufficient (limited) because it is determined by the law of cause-and-effect limitations. It forces the systems to continuously seek the way to overcome these limitations, develops them and determines direction of evolution of the systems. That is why the systems develop towards their complexification and enhancement of their possibilities (evolve). If there would be no limitations, there would be no sense in evolution because ultimately the goal of evolution always consists in overcoming the limitations. All objects of our World have at least two primary goals: to be/exist in this World (to preserve themselves) to fulfill the goal and to have maximum possibilities to perform the actions for the achievement of the goal. However, any object of our World is limited in its possibilities to varying extent due to the lawof cause-and-effectlimitations and moreover, since the objects are continually exposed to various external influences destroying them, the systems have to continually protect themselves from such destruction. Therefore, the systems at first “have invented” passive and then active waysof protection against such destructive influence. The process of “invention” of these ways of protection and the enhancement of their possibilities is what evolution of objects of our World means exactly, at that it implies not only the evolution of living beings, but evolution of everything that exists in the world. Consolidation of objects in groups strengthens them and ensures the possibility for them to co-operate against destruction in a target-oriented manner. It is for the reason of “survival” of elements that the systems came into being, and complexification of elements just magnifies their possibilities. The simplest systems are those having only simple control block. Such objects include all objects of mineral nature, as well as plants. The possibilities of elementary particles are too small, and the lifespan of many of them is too short. The lifetime and possibility of an electron, proton or neutron are tenfold. Grouping of elements not only increases their lifetime, but also increases their possibilities. What can be done by electron (proton, neutron) cannot be done byelementaryparticles constituting them. What can be done by atoms can not be done separately by protons, neutrons and electrons.Groupingof atoms in molecules has enabled the development of more complex systems, up to human being, construction of which would have been impossible using elementary particles. However, although in process of further consolidation of atoms and molecules in conglomerates (mineral objects: gas clouds, liquid and solid bodies) the possibilities of these objects increase, but their lifetime starts to decrease sharply because the law of negative entropy works. Destruction is the loss by the object of its SFU. There are only two ways to prevent from destruction: increase in durability of connections/bonds between the SFU, restoration of the lost SFU, prevention of the SFU losses. The first one is passive, while the other two are active ways of protection. The increase in durability of connections/bonds between the SFU (the first way) is the passive wayof protection against destruction. Mineral bodies have only these passive means of protection from the destructive effect of the external medium. The weakest of them are gaseous objects, while the strongest are crystalline. But even the strongest crystal may be destroyed. Metabolism is aimed at the restoration of the lost SFU (the second way) and is the active way of protection of systems from destruction. It is carried out at the expense of capture of necessary elements from the external medium. There is no metabolism in mineral objects, but it is present in all living objects, including plants. Hence, our World can be divided conditionally into two sub-worlds: inanimate/inorganic and animate nature. The criterion for such division is metabolism – the purposeful process of restoration of the lost SFU. But for such process the system should contain corresponding elements (metabolism organs) which are not present in the objects of mineral inorganic nature, but do exist in plants. Prevention of SFU losses (the third way) is also an active way of systems’ protection from their destruction. Systems may be prevented from destruction for the account of their behavioral reactions depending on the external situation. If the situation is threatening the system needs to escape from the given situation. But for this purpose it is necessary to be aware about this situation, to be able to see it, as well as to have organs of movement which are nonexistent in the systems of mineral and vegetative nature. For this purpose it is necessary to have at least complex control block. Hence, in the animate nature it is possible to single out two more sub-worlds/natures: flora and fauna. The criterion for such division is the complexityof the control block and its ability(the availability of possibility) to show behavioral reactions. The more complex the control block, the higher is the development of animal as a system. But at that, note should be taken of the fact that the development of systems from plants to animals was basically solving only one problem – to be/exist in this World. The purport of existence of plants and the majority (if not of all) of animals, except for humans, is only in the metabolism. If the system is hungry it operates, if is satiated it stays idle. Yes, with complication of the control block simultaneous increase in the possibilities of systems occurred too, but it still pursued the goals of metabolism. More adapted animal feeds better. If the system plays and lives jolly (emotional tint of behavioral reactions), such reactions as a rule are still directed towards self-training of systems for better hunting for other systems. Therefore such reactions are basically inherent in young animals. More adult individuals do not play any more. Note should be also taken of that division of animals into predators and herbivorous animals is quite conditional, since it is not eating meat that is a distinctive feature of a predator and plants may also be carnivorous (for example, sundew and the like). Absolutely all animals, and not only them, but plants as well, are predators, since they represent the systems which feed on other systems. Even among the objects of mineral nature mutual relations of a victim-predator type may be found. Some systems (plants and herbivores) feed on systems with simple control blocks (mineral objects and plants) because it is easier thing to do. However, other systems (carnivorous) feed or try to feed on systems withcomplex control blocks (other animals), although it is much more complex to do so. That is why the donkey is more stupid than a tiger. The human being differs from other objects of animate nature first of all in that it is not metabolism which is the main purport of his/her life, but cognition. Yes, the higher the level of knowledge, the better the nutrition. But the process of cognition in itself prevails over all other processes aimed at metabolism. And even the metabolism itself is raised to the rank of art (the cookery). It is also possible to single out the human nature in that way as well, since only a human being out of all objects of our World has second signaling system (the intellectual control block) and aspiration towards cognition. Hence, the purpose of our World was evolution which has stipulated the development of systems in the direction towards complexification of their control blocks up to a human being. And the purpose of this evolution was to develop systems to such a degree that they have learnt to cognize the World. We can look back and see the confirmation of it throughout the entire history of development of our World in general and biosphere in particular. We do not know what was before the Big Bang, and we do not even know to which extent such statement is qualified. However, after it only the emergence and complexification of systems in the Universe was taking place, at that it occurred only at the expense of complexification of their control blocks, because their primary SFU (elementary particles) practically have not changed since then neither qualitatively, nor quantitatively. And we, the people, are the consequence and the proof of this development either. The human being is the most complex system, the top of evolution which has occurred till nowadays. Experience of this evolution shows that major distinctive feature throughout the entire process of advanced development was only the development of control blocks of systems. We do not know the purposes of the majority of systems of our World, although we can fabricate a multitude of speculations on many issues of this subject. For example, nuclei of atoms of chemical elements that are heavier than iron in those quantities which exist now in our Universe, could only and only appear as the result of explosions of supernovas. Hence, is the purpose of stars with evolution of a supernova type is the production of nuclei of atoms harder than iron? It may be true, although no one would avouch for it for the present. But we can surely state that a human being in the shape it exists today and is known to us would not have been existent without the elements having atomic weight heavier that iron, because the structure of its organism requires the presence of such elements. So, there are sufficient grounds for the assumption that stars of a supernova type are necessary for the development of the humans. It sounds strange and extraordinary, but still it’s the fact. But we know for sure and without speculations the purposes of some of the World’s systems, in particular, the purposes of many systems of organism. We know one of the main objectives of any living organism – to survive in the environment, and we know the hierarchy of sub-goals into which this purpose is broken down. We see how living systems develop on the way of evolution, we see the differences of systems standing at different levels of evolutionary process and we can explain the advantage of some systems over the others. In other words, the possibility is opened to us to construct classification of all systems of our World, includingthat of living systems. Today there is no uniform classification of all objects of our World, but there are only separate classifications of various groups of these objects, including classifications of astronomical, geological, biological and other groups. At that, nowadays the underlying principle of the majority, if not of all of these classifications, including classification of both the entire animate nature and the diseases, is the organic-morphological analysis. But probably it is necessary to substitute it, as well as classification of diseases, for the classification based on systemic analysis – the analysis of the goals/purposes. And the basic principle of the new classification should be not external distinctions, such as the number of feet or cones on the teeth, but two basic differences: differences by types of control blocks and types of executive elements. Moreover, it is necessary to include all objects of our World in this classification – animate and inanimate, because our World is replete only with systems which differ from each other only in the degree of development of their control blocks and in the ways of protection against destruction by the external media. The world is uniform, because it is a system in itself. Therefore, it is necessary to create common and single classification of all systems of our World. And systems are any objects, including animate/organic and inanimate/inorganic. Then it will be possible to distinguish four worlds/natures (sub-natures) of objects in our World: the world of minerals/mineral nature/, vegetative, animal worlds/natures/ and the world of humans/the human nature/. The population of each world differs from each other, as it was repeatedly underlined, only in control blocks and metabolism. The objects of mineral and vegetative nature have simple control blocks. But the objects of mineral nature have only passive ways of protectionagainst negative entropy (destruction). And all living subjects, including plants, have active ways of protection against the same negative entropy, i.e. active substitution of the destroyed SFU at the expense of metabolism. Animals, unlike plants, in addition to metabolism, have more complex control blocks which enable behavioral reactions and thus allow them to control in a varying degree surrounding situation. And the humans have the most complex control block which contains the second signaling system and consequently it is capable of cognizing the whole World, including themselves, but not just what happens/exists nearby. And within each type of nature classification we should also proceed further to include the criteria of complexity of control blocks and then the criteria of presence and the degree of development of executive elements, including the number of feet or cones on the teeth. In this case classification will be the one of cause-and-effect type and logical. For example, vegetative nature/the flora/ includes not only plants, but all the Earth’s population which possesses only simple control block and metabolism. And those are not only plants and not only metazoan. Procaryotes and eukaryotes, bacteria, phytoplankton, sea anemones, corals, polyps, fungi, trees, herbs, mosses and lichens and many others possessing and those not possessing chlorophyll are all flora. They simply grow in space and they have no idea of it because they “do not see” it. However, some plants, for example, trees or herbs, unlike corals, fungi or polyps, contain chlorophyll (specific executive element). Such classification of systems has one incontestable advantage: it aligns everything that populates our World – the systems. The whole World around us is classified by a single scale, where the unit of measure is only the complexity of control block and executive elements used by it. In that way it would be easier for us to understand what life is. May it be so that inanimate nature does not exist at all? Perhaps, “animate” differs from “inanimate” only in that it “has comprehended” its own exposure to destruction under the influence of environment and first has learnt self-restorability and then it learnt how to protect itself from destructions? Then Pierre Teyjar De Chardin is right asserting that evolution is a processof arousal of consciousness. Currently existing classifications do not provide the answer to this question. New classification of systems based on the systemic target-oriented analysis will make it possible to understand, where the “ceiling” of development of systems of each of the worlds is and which of its subjects are still at the beginning of the evolutionary scale and which of them have already climbed up its top. But this classification is based on the recognition of the first-priority role of the goal/purpose on the whole and purposefulness of nature in particular, which idea is disputable for the present and is not accepted by all. Therefore, queer position was characteristic for the XX century: the position of struggle with nature, position which is still shared by a great many. This position is fundamentally erroneous, because the nature is not our enemy, but the “parent”, the tutor and friend. It “produced” us and “nurtured” us, having provided a cradle, the Earth for us, and it has been creating greenhouse conditions throughout many millions years, where fluctuations of temperature were no more than 100ºC and the pressure about 1 atmosphere, with plenty of place, sufficient moisture and energy, although Space is characterized by range of temperatures in many millions degrees and of pressure in millions atmospheres. It has brought us up and made us strong, using evolution and the law of competition: “the strongest survives”. It is not our task “to take from it”, nor to struggle with it, but to understand and collaborate with it, because it is not our enemy, but the teacher and partner. It “knows” itself what we need and gives it to us, otherwise we would not have existed. This is not an ode to the nature, but the statement of fact of its purposefulness. Some may object that such combination of natural conditions which has led to the origination of human being is just a mere fortuity which has arisen under the law of large numbers only because the World is very large and all kind of options are possible in it. However, that many incidental occurrences are kind of suspicious. The nature continually “puts stealthily” various problems before us, but every time the level of these problems for some reason completely corresponds to the level of development of an animal or a human being. For some reason a man “has discovered” a nuclear bomb at the moment when he could already apprehend the power of this discovery. Nature does not give dangerous toys to greenhorns. If there were no problems at all, there would be no stimulus to development and as of today the Earth would have been populated by the elementary systems, if it were populated at all. However, if the problems sharply exceed the limit of possibilities of systems, the latter would have collapsed and the Earth would have not been populated at all, if it would be existent in abstracto. And in any case there would have been no development on the whole. But we do exist and it is the fact which has to be taken into account and which requires explanation. And the explanation only consists in the purposefulness of Nature.