The problem with China, in my mind, are several fold, like any other country to be fair. 1) Its primary industry is export. Is it really sustainable especially

The problem with China, in my mind, are several fold, like any other country to be fair. 1) Its primary industry is export. Is it really sustainable especially since other countries in the World may soon provide even cheaper labor and economic realities may force countries which consume China's products may reduce the demand. 2) It is artificially controlling its currency. I'm not an economist but how long can they keep doing this? Can a country really keep this going on for too long? 3) Its internal problems related to widening economic gap, human rights, and a communist government are going to get worse when people with new found (or lacking) economic freedom revolt. When will this happen, probably soon or maybe never. Only time will help how it pans out in the future.