Answer:
How did the quality of life of human beings improve in the post-Gutemberg era?
Step-by-step explanation:
There have been three revolutions in the history of human thought and we are on the threshold of a fourth. The first took place hundreds of thousands of years ago when language first emerged in hominid evolution and the members of our species became inclined -- in response to some adaptive pressures whose nature is still just the subject of vague conjecture (Harnad et al. 1976) -- to trade amongst themselves in propositions that had truth value. There is no question but that this change was revolutionary, because we thereby became the first -- and so far the only -- species able and willing to describe and explain the world we live in. It remains a mystery -- to me at any rate -- why our anthropoid cousins, the apes, who certainly seem smart enough, do not share this inclination of ours. At any rate, this divergence between our two respective species was a milestone in human communication and cognition, making it possible for culture to develop and be passed on by oral tradition.That momentous adaptation seems to have had a neurological basis. injuries to certain areas of the left side of the brain -- Wernicke's area and Broca's area, to be exact -- result in language-specific deficits in speaking and understanding (Harnad et al 1977; Ojemann 1983). So whatever the evolutionary changes underlying language were, they were imprinted as permanent modifications of our neural hardware.