Leading cryptocurrencies slumped Thursday as the Federal Reserve’s hawkish rate cut projection continued to fuel anxiety among investors. What Happened: World’s largest digital currency, Bitcoin, slipped to the $66,000 zone, with a $16% decline in 24-hour trading volumes. Ethereum dipped below $3,500 for the first time in three weeks. The slump liquidated $162 million of cryptocurrency investors’ fortunes in the last 24 hours, with long liquidations amounting to $139 million. Bitcoin’s Open Interest plunged 2.16% in the last 24 hours. A drop in OI and a drop in spot price indicated that money …