China's economy may be the ultimate grey swan, according to investor Vitaliy Katsenelson.
Katsenelson is concerned China's enormous growth rates haven't been built on anything real, but rather a command economy ready to collapse.
That command economy has created cities and malls with no residents, based on a demand it manufactured itself. His thoughts dovetail nicely with the thinking of that other well-known China bear: Jim Chanos.
It's a powerful presentation, that also spells out the result of a Chinese collapse for the broader world economy. including a collapse in commodity markets.