Peter Schiff, a well-known Bitcoin critic, has taken another jab at Michael Saylor, CEO of MicroStrategy and Bitcoin’s biggest cheerleader. Schiff tweeted his prediction that the U.S. government is about to sell 69,370 Bitcoins, valued at roughly $4.3 billion. He suggested that Saylor “borrow another $4.3 billion” and snap them up, tagging the MicroStrategy chief