The history of alphabet goes back to the 2nd millennium BCE. Rotary drum printing was invented in 1847. Before the invention of printing, books were handwritten by the scribes. Not all manuscripts are reliable because some of them were pure fantasies, particularly those that are attributed to self-proclaimed representatives of a deity.
Sigmund Freud and Carl Jung were contemporaries in 1900. Freud introduced 'id, ego and superego'. Carl Jung, a Swiss psychiatrist and psychotherapist, 1875- 1961, offered the idea of collective unconscious. According to him, "This is a level of unconscious shared with other members of the human species… ancestral memories and images …"
Julian Jaynes, an American psychologist in 1979 based his hypothesis, called bicameral mind, on Iliad etc. He suggested the right part of the brain spoke while the left hemisphere executed the commands comparable to people afflicted with schizophrenia, according to Jaynes a vestige of the past auditory hallucination, a suggestion that cannot be tested now. However, Julian Jaynes in regard to these voices says, "… there is a genetic inherited basis, the genes that were in the background of the prophets and the sons of the prophets."
According to Julian Jaynes, bicameral man when faced a stressful situation which couldn't be solved, he heard hallucinated voices or commands that could resolve the problem, a voice similar to common tinnitus.
However, a simple animal like a packed donkey when reaching a rickety bridge, would not risk crossing it, despite the driver's Gee-ups. Before crossing, the animal stops abruptly to sniff and pound the rickety bridge with one hoof to detect and evaluate the echo.
How could thousands of scattered bicameral men each facing a different problem, like the donkey, hear simultaneously a guiding hallucinated command? Since the hurdles were different, the commands must have been dissimilar. The right hemisphere must have acted according to instinct modules.
Julian Jaynes says, "Some people find it difficult to even imagine that there can be mental voices that are heard with the same experiential produced voices." Fortunately, Julian Jaynes adds, "... the paradigms behind these aptic structures were evolved into the brain by natural and human selection during the early civilizing of mankind..." Later Julian Jaynes concludes, "The selective advantage of such genes was the bicameral mind evolved... " The Genetic code of DNA was discovered in 1966-the codes that encode the genetic instructions.
As to poetry, Julian Jaynes writes: The first poets were gods...most men were hearing poetry not creating them. Plato, Goethe, Lamartine, Voltaire and many others have confirmed that poems came automatically. Same applies to music, handwriting, painting, singing, dancing, walking, sculpting, wood carving, calendar counting, reproducing the sound of animals and many others things performed by people classified under 'savant syndrome'. These talents all come ready-made by the organic machine, called man, just like application programs that are installed in cell phones.
Despite being supplied by microchips, the organic machine, man, comes with many defective problems such as the so-called radicalized Islamist. Psychologists have studied man's personalities and have come up with about sixteen different types of personalities, but the list does not include mad radicals.