I'm passively curious how the long-term maintenance of this all ends up. You don't just build a bridge, you have to keep it up when the natural strain of the world impacts upon it. Given provinces already have debt problems [0], how the hell will all of this infrastructure look in 50 years?

[0]: https://www.scmp.com/economy/china-economy/article/3254680/c...

This is the structure of catabolic collapse. When the mere maintenance costs over run the capabilities/resources of the civilisation.

Funnily enough it may turn out that those nations that just muddled along could have the best long term out comes. Yes, they never got the really good stuff but they also won't have a harder decline.

"You cannot fall out of bed if you sleep on the floor" - Turkish proverb