I've found the cite I was thinking of: 95% of blockchain activity is on Chinese exchanges in yuan. It doesn't say it's all speculation, perhaps they're all buyi

I've found the cite I was thinking of: 95% of blockchain activity is on Chinese exchanges in yuan. It doesn't say it's all speculation, perhaps they're all buying drugs and paying ransomware with it ... but I wouldn't bet that way. http://www.coindesk.com/state-of-bitcoin-blockchain-2016/ http://www.coindesk.com/state-of-bitcoin-blockchain-2016/