According to recent research, our complex neural-hormonal system (NHS) was shaped by evolution in function of its ability to protect our body's integrity, thus ultimately enhancing our genes' reproductive potential. Our "mind-body units" may hence be viewed as NHS-endowed "survival and reproduction machines" of our genes. The senses in turn may be interpreted as prostheses of their carriers' respective NHS, as they are capable of converting electro-magnetic waves, air vibrations, or other environmental signals, into luminous, acoustic, or other sensations to which we arbitrarily assign specific qualities that they in themselves do not possess. Communicating instruments developed in the recent past (radio, TV, telephones, internet etc.) are becoming like "second degree" prostheses of our previously evolved NHS prostheses, i.e. the senses. One of our main NHS' emergent properties is to distinguish between positive and negative hedonistic tones (pleasure and pain), which generate emotions and instincts; the latter consisting of gene combinations that were selected as they codified neural-hormonal patterns of response to environmental challenges inducing behaviours best granting, in the average, the reproductive success of their phenotypic carriers [8]. According to recent neuroscientific views [4], the whole neural-hormonal network has evolved as an extremely fine-tuned re-elaboration of our primordial ancestors' cell membrane, basically serving the same purpose of protecting the integrity of its underlying genes' "phenotypic envelop", i.e., the body. In fact, our mind has evolved as a complex machinery constantly monitoring our inner state. The "emotional colouring", which is generated by the NHS, and characterizes all activities performed by our mind, thus appears to be indispensable for the preservation of the vital processes generating that "well-being" state. Any "species", including ours, can be viewed as a "DNA consortium", an involuntary and unconscious way of survival and reproduction that allowed the propagation, so far, of their respective genetic pools. We, "individuals", aren't, in this perspective, but physically separated variants of the shared broader DNA consortium, i.e. of our common genetic pool. Within this context, individuals were selectively advantaged who best fit the needs of their troop/tribe's social structure (in its turn emerged from a previous, in fact a parallel, selection), as they were carrying the tribal instincts that best granted their community's genetic pool's survival and reproduction [14]. Thus, individual selection compounds in the long run with social selection. In this context, social media, and networks, may be viewed as a sort of "surrogate tribes", i.e., updated instruments of a contemporary version of the evolved human social communities.
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