PANews June 4 news, according to CCN, the size of the U.S. national debt has exceeded the 37 trillion U.S. dollar mark, causing concerns about the status of the U.S. dollar as a global reserve currency. Coinbase CEO Brian Armstrong recently warned that if the United States cannot effectively control debt growth, Bitcoin may replace the U.S. dollar as a new reserve currency. This view is supported by the Winklevoss brothers, co-founders of the Gemini exchange, who cited the chart of soaring U.S. debt and called for "buying Bitcoin." Armstrong emphasized: "I love Bitcoin, but a strong United States is equally important to the world," calling for fiscal reform. The debt ceiling "X date" is expected to arrive in late August to mid-October. If the ceiling is not raised in time, the federal government may face spending cuts and payment delays.