But
why did China discard movable type, while it was transformative to Western culture?
One reason is that Greece invented proto-empiricism. Other cultures invented math, but because of Plato only Greece elevated research and abstraction into a process of formal discovery rather than just a set of neat tricks for a limited set of problems.
China was a bureaucratic empire and didn't see the need. Rome was a fascist militarist slave owning culture which soon turned into a dictatorship. Both developed philosophies which were more oriented towards ethics and morality than empiricism.
So there was no formal culture of curiosity and invention. Inventions appeared and then they disappeared again. There was no momentum driving the process forward.
The West did develop an empirical culture. This was partly because it inherited the principle of formal abstraction from the Greeks, and partly because a tradition of physical exploration, with accompanying developments in ship technology and weapons.
China and Japan both turned back in on themselves. Rome was more interested in conquest than exploration.
The West explored - physically in search of gold and trade, but also philosophically and practically.
So IMO the real reason the industrial revolution happened is because the West had a culture that incubated technology and invention in a way that other cultures didn't. Not only were there associations for the advancement of knowledge like the Royal Society, and informal networks of researchers and mathematicians, there was also a practical tradition of engineering in wood, iron, stone, glass, fire, and water, on land and on the sea.
And also an economic reward system - abstracted from imperialism - which made practical engineering individually profitable.