The demand for literature

According to Timothy Hugh Barrett, paper played a pivotal role in early Chinese written culture, and a "strong reading culture seems to have developed quickly after its introduction, despite political fragmentation."^[14] Indeed, the introduction of paper had immense consequences for the book world. It meant books would no longer have to be circulated in small sections or bundles, but in their entirety. Books could now be carried by hand rather than transported by cart. As a result, individual collections of literary works increased in the following centuries.^[15]

All around Asia and Europe, within decades of each other, paper production began expanding, if Ihav these time scales right. How is that?

Hereis more on development:

Arab prisoners who settled in a town called Borgo Saraceno in the Italian Province of Ferrara introduced Fabriano artisans in the Province of Ancona^{[clarification needed]}the technique of making paper by hand. At the time they were renowned for their wool-weaving and manufacture of cloth. Fabriano papermakers considered the process of making paper by hand an art form and were able to refine the process to successfully compete with parchment which was the primary medium for writing at the time. They developed the application of stamping hammers to reduce rags to pulp for making paper, sizing paper by means of animal glue, and creating watermarks in the paper during its forming process. The Fabriano used glue obtained by boiling scrolls or scraps of animal skin to size the paper; it is suggested that this technique was recommended by the local tanneries. The introduction of the first European watermarks in Fabriano was linked to applying metal wires on a cover laid against the mould which was used for forming the paper.^[69]

More like stamping cheap plywood.  It was simply an art supporting background.  But as a writing tool, it it the sweet spot, a less durable, maybe, but much cheaper writing material, an a source of art and literature for the average person. Probably first used for religious art and text, bu soon spread. They made glue from animal skin, still attached to the parchment idea a bit. But the glue was an wastage from the tanning process.

Having religious art and text at home is like having the official language in your house. Every government official knows what you mean. It their is dispute among neighbors then you have the official library test, a stack of stiff art sheets with the text written by a church official.

Events in 1000:

• 1012: Burchard of Worms completes his twenty-volume Decretum of Canon law.
• April 1033/1034: Saint Anselm of Canterbury is born ^[22]
• July 16, 1054: Liturgical, linguistic, and political divisions cause a permanent split between the Eastern and Western Churches, known as the East–West Schism or the Great Schism. The three legates, Humbert of Mourmoutiers, Frederick of Lorraine, and Peter, Archbishop of Amalfi, entered the Cathedral of the Hagia Sophiaduring mass on a Saturday afternoon and placed a papal Bull of Excommunication on the altar against the Patriarch Michael I Cerularius. The legates left for Rome two days later, leaving behind a city near riots.

By this time the popes had set up the European Christian royalty system, they all were converting.  Cannon Law written, game over, Latin won in southern Europe and some parts north east.  It was the official language for a good deal of Europe, exceeding the limits of the Roman empire.  An investment in paper pays off, there is less uncertainty for all. So paper, little more than clay tablets at the time, had a home market because it had an application language. Like the way "c" took off.  Paper making was barely at the four bit processor stage.