The grim weekend cryptocurrency drubbing that dragged Bitcoin (BTC) under $50,000 and ravaged other digital coins has decisively tempered the bullishness of investors — some of whom were predicting a run at $100,000 just weeks ago. Fueled by uncertainty over the Federal Reserve inching toward tighter monetary policy in the face of surging inflation, and global fears over the new Omicron variant of COVID-19, the dramatic crash was super-charged by liquidations in the crypto derivatives market,...