The crypto comeback continued on Tuesday, adding about $12 billion to the total value of all cryptocurrencies. The bitcoin price led the charge, rallying 15% for the day. Ethereum, meanwhile, posted even more impressive gains; it surged by more than 20% to $200. Altogether, 14 of the top 15 coins experienced double-digit percentage price increases as the total cryptocurrency market cap swung back above the $80 billion mark.