Try to think of something advanced but theoretically possible that would rapidly proliferate. No weapons.
My first thought was some kind of farm tech leading to a second agricultural revolution, allowing AES countries to thrive despite sanctions. Some leap forward in permaculture or vertical farms or whatever.
Another idea was a breakthrough in cryptography makings comms be completely anonymous, giving insurgent movements a more even playing field.
yeah the fact is it has already happened partially on one project in 4 years. heres their 2 year plan, which is bound to succeed. i read the papers and posted them here translated at one point, really impressive and solid tech.
heres the 4 year dam, the 4th largest dam in the world (or the largest arch dam in the world): https://www.scmp.com/news/china/science/article/3125651/how-china-built-worlds-largest-arch-dam-just-four-years?module=inline&pgtype=article https://en.wikipedia.org/wiki/Baihetan_Dam
china is in a uniquely good position for hydropower. all of those rivers blasting off the tibetan plateau have huge potential for dozens of high powered massive dams. it also brings an added benefit of regional stability, people used to die in the millions to floods before the communist party began constructing dams and flood resistant cities. this offsets the environmental impact inherent to dams, imo. we gotta make sure people arent dying first and foremost.