Industrial Revolution in the Southern Song Dynasty

Returning to the Southern Song Dynasty with a complete set of "Encyclopedia". What can you do? Mongolia was busy with its western expedition and had started a war with the Jin Kingdom on the eastern front. The Jin Kingdom would be destroyed in a few years, and what would happen in the next few decades would be the collapse of the entire Southern Song Dynasty. Can the knowledge of later generations save the precarious Song Dynasty? Will America still be discovered by Columbus? ========= QQ group: 12394459.