Why the Chinese were ahead of the Europeans in printing until the 15th century, but then they lagged behind Europe. Is it so?

After overthrowing the Mongol yoke in the 1360s, the Chinese experienced a cultural boom and began their maritime expansion. Their ships reached India and Madagascar before the Portuguese reached the Cape Verde Islands. But the rapid growth of bureaucracy in the Ming empire soon made overseas voyages unprofitable, and they ceased. It was the same with typography. The Chinese were the first in the 11th century to create movable type from baked clay, but did not invent metal type, since the demand for new books was low.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.