Berkshire Hathaway's old energy bets turn into unplanned AI infrastructure windfall

Warren Buffett, who stepped down as Berkshire Hathaway's chairman last week, built his fortune avoiding flashy AI stocks in favor of utilities and industrial firms. Two of those older deals — the 2000 purchase of MidAmerican Energy and the 2016 acquisition of Precision Castparts — are now benefiting from AI's surging demand for electricity and turbines, according to analysts cited by CNN.