Geneticists studying areas associated with brain development (“zones of accelerated human development” or HAR – Human Accelerated Regions) found that both humans and primates have them. But about a million years ago, differences began to appear – the protein packaging of DNA was rearranged. The "zones of accelerated human development" of the ancient human ancestors accidentally appeared next to enhancers – amplifiers of gene activity, which became a turning point in the history of the Homo sapiens species. An enhancer is a small section of DNA that, after binding transcription factors to it, stimulates transcription from the main promoters of a gene or group of genes. Enhancers are not necessarily located in close proximity to the genes whose activity they regulate, and are not even necessarily located on the same chromosome with them.
Each phenomenon in the world is formed under the influence of not only essential, necessary, but also random causes. Through the category of dialectics – necessity and chance, these phenomena can be explained. Necessity and chance do not exist without each other, they are an inseparable dialectical unity. The same connection, accidental in one respect, appears as necessary in another respect. Necessity does not exist in a "pure form", it manifests itself through chance. In turn, chance acts as a form of manifestation of necessity and its complement; it gives the phenomenon a certain originality, specificity, unique features. Ancient man, other living organisms belonging to a certain species, have common (specific) features that have arisen in the process of long-term development and are inherited. But these necessary signs always exist in an individual form, since a person and other living organisms differ from each other in size, shape, volume, etc. Some of these initially random traits for a species of a given species are fixed in the course of development, inherited and become necessary, and those of the necessary traits that turn out to be inappropriate in a different situation disappear, appearing in subsequent generations only in the form of a rudiment, that is, an accidental trait. . Thus chance turns into necessity, and vice versa, necessity turns into chance.
Billions of neurons in the human brain are constantly making trillions and trillions of new connections, of course, this happens strictly individually. In the process of human life, all information entering the brain is stored there (as on a hard drive – a computer hard drive, the similarity of the brain with a computer hard drive lies in the fact that in the brain information is transmitted through the nervous system, which is a network of several trillion nerve cells (neurons) as in a computer through electronic switches that have only two meanings – bits (double numbers) and perform only one action – addition, which is also observed in the finds of artifacts of an ancient man who could only add, as well as small children adding from matches, the number of something or someone, the BIOS of a computer – unconditioned (innate) reflexes, and the programs installed later on the hard drive of a computer – acquired reflexes or some kind of "soul" of a person), but in most cases it turns out to be unclaimed. With an organic change in the brain (trauma, infection, etc.), completely different previously uncharacteristic neural connections are established and various phenomenal abilities may appear (the ability to draw, memorize, versify, etc.), but individually, since each person has his own neuroconnections. The nonspecific activating system of the brain increases significantly with psycho-emotional stress, that is, an altered state. There is a sharp jump in the development of the human brain (the human brain increases).