This guide has taught us the complexities of trade and currency, shipbuilding and architecture, medi

This guide has taught us the complexities of trade and currency, shipbuilding and architecture, medicine and astronomy. Each generation began life with higher forests of knowledge and technology than the previous one, and progress continued to accelerate. But painstakingly written books were considered treasures and access to them was only in the high elites (in the middle of the 15th century there were only 30,000 books all over Europe). And then there was another breakthrough: a printing press. In the 15th century, the bearded Johann Gutenberg came up with a way to create many identical copies of one book, faster and cheaper than ever. (Or, more precisely, when Gutenberg was born, humanity had already discovered the first 95% of how to invent a printing press, and Gutenberg, with this knowledge at the starting point, invented the last 5%). (And Gutenberg did not invent the printing press, the Chinese did it several centuries earlier.) A good confirmation of the fact that everything that is usually considered produced somewhere not in China was most likely invented in China).

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