Many economists and investors feel relieved because China is still growing at 6.8%. They should think twice. On one side, that level of growth is clearly overestimated. By any realistic measure of growth, China's Gross Domestic Product annual increase is significantly lower than the official figures show. Patrick Artus, global chief economist at Natixis Global Asset Management, as well as other economists have noted that there has been a significant decoupling since mid-2014 between the government's official growth reading and more reliable indicators. On the other hand, even if we agree with the official readings, this growth has been achieved using a worryingly high level of debt.