Hedge-fund billionaire Leon Cooperman detailed 11 reasons why he's worried about the long-term effects of the coronavirus pandemic. Cooperman is concerned about tougher regulations, tax hikes, soaring government debt, and a sluggish recovery in demand, he said in an email shared with Business Insider. The investor also flagged Warren Buffett's inactivity in recent months, saying that if the Berkshire Hathaway boss isn't doing much, "who am I to be bold?" Visit Business Insider's homepage for more stories. Billionaire investor Leon Cooperman has a laundry list of worries about the long-term impacts of the coronavirus pandemic.