Bitcoin traders appear to be heeding a warning of a demand slowdown ahead of China’s lunar New Year. The largest cryptocurrency slumped as much as 4% to $8,281, while altcoins such as Ethereum Classic tumbled more than 11% to $8.18 in New York trading. Arthur Hayes, co-founder and chief executive officer of BitMex, a cryptocurrency exchange, predicted in a post on Twitter late Wednesday that it’s time for “volatility and volumes to nose dive.” Cryptocurrencies have been under pressure this week. The price of Bitcoin has dropped more than 6% since Friday, while the Bloomberg Galaxy Crypto Index -- which tracks some of ... (full story)