According to online reports, Warren Buffett, founder and CEO of Berkshire Hathaway and a Bitcoin critic, announced that he will retire at the end of the year and announced that Greg Abel is his preferred successor. This decision may mark a major shift in the company's Bitcoin strategy. Berkshire Hathaway currently holds shares in digital bank Nubank, which supports transactions in mainstream digital currencies such as Bitcoin and Ethereum. Analysts believe that under the leadership of Greg Abel, Berkshire Hathaway may continue to develop on this basis, and Trump's support for cryptocurrencies may also help the company's transformation. Buffett also said at the shareholders 'meeting that "something may happen in the United States that makes us want to hold a large number of other currencies."