People see in charts what they want to see. Another article showed Bitcoin's descending triangle pattern and are convinced it will explode, because we all want cryptos to succeed. Here we arguably have a similar pattern and everyone says China will crash, because that's what they want to see.
But the fact is, China's GDP growth has been above 6% for decades, and that's a very good growth rate. It also has the second highest GDP. In comparison, the US's (#1) is 2.27, Japan's (#3) is 1.71, Germany's (#4) is 2.51, United Kingdom's (#5) is 1.79 and France's (#6) is 1.85. You don't find a country exceeding China's growth rate until position #18 (Turkey's 7.05), then #32 (Ireland 7.81).
source: http://statisticstimes.com/economy/projected-world-gdp-ranking.php
I really don't see how anyone can say China's GDP isn't strong, simply by comparing it to past spikes. It's not possible to sustain 15.5% for 25 years. If it could, then by 2043, China's GDP would be projected to 517,074 billion, or 14.5 TIMES that of the US's projected GDP of 35,778 billion based on 2018 rates and GDP.
No disrespect intended to the original poster...just an observation.