(While "Paper" is partially a history book, it also has as a thesis that societal change leads to technological change, rather than the opposite, and attempts to demonstrate it through the history of paper.)
The most important forces in history are geography, demographics, and information flow, probably in that order.
I would propose that the history of the west largely hinges on the printing press. Gutenberg doesn't invent the press, Luther never gets the word out about Reformation, Enlightenment never occurs, John Smith never writes Wealth of Nations, America never splits from Britain, etc.
We ascribe too much meaning to exactly which person invented something first, as if it never would have happened absent that one person.
Note that after the continuous decline in price from 1350 to 1650, the price of paper stabilized due to the demand from printers. The availability of linen rags was another limiting factor until the development of wood pulp paper.
On page 9 -"Vellum and parchment were not viable for mass production. A well-known example is the Gutenberg Bible, of which 30 copies were printed on parchment. Each parchment copy required the skins of more than 300 sheep."
I think you need to recheck your facts.
Previously, parchment made expensively and laboriously from animal hides was the medium for the written word in Europe. However, a cheaper medium was needed for less important documents, and "rag paper" made from old linen clothes began to be produced in greater volumes in the mid-14th Century. As volumes increased it became much cheaper than parchment. As a result, Gutenberg's invention of movable type was economically advantageous and the literary explosion in Europe resulted. Had parchment still been the only medium available, the cost of books would have been very expensive, whether produced by scribe or printing press.