I think the best model to understand this is Michael Pettis's balance sheet analysis. He covers it extensively, but here's his latest digest of the model: http://carnegieendowment.org/chinafinancialmarkets/66221 It really makes clear how stark the choices are for China. The debt binge of the last ~10 years has masked the flattening out of productive investment, and there will need to be a reckoning. Hopefully it's a…
It seems like smart people have been predicting that China's growth is unsustainable on a regular basis for at least 15 years... it's tough for an average HNer like myself to take the time to tell which "expert" is just blowing smoke and which expert truly has a handle on the salient facts- Guess all I can really do is simply wait and see who ends up being right...
If you mean sound growth, they were right. That has ended and growth is increasingly based on financial tricks that will make things worse in the long term, so I would say the experts turned out to be correct.
Also, even with all the debt, yearly GDP growth is down from the previous 10% to something like 6%, so again the experts were right.