On Friday, eight ancient addresses that had been dormant for 14 years and collectively held 80,000 bitcoins were suddenly activated, triggering a panic sell-off in the market. According to Conor Grogan, the head of Coinbase, these addresses likely belonged to an independent miner from 2011, who had once accumulated mining rewards from 180 blocks and held as many as 200,000 bitcoins at one point. This makes them the fifth-largest whale in Bitcoin history. What unsettles the market the most is ...