The chinese have essentially pulled forward YEARS of production building things that dont even need to be built. they literally have 'ghost cities' the size of dallas that are essentially vacant...entire cities. they have malls that are 200,000 sq feet that have 5% occupancy.
This phenomenon is well known—see, for instance #msg-57188901.
The demographic tailwind from the emerging middle class in China and other developing countries makes this overbuilding more of a curiosity than a worry for investors with a long-term horizon.
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”