Buffett went on to cite Berkshire holdings Coca-Cola and See's Candies as examples of assets that are good inflation hedges, since they can raise prices and customers are likely to accept them, while neither is burdened with heavy capital costs. Miller invested in Bitcoin in his fund years ago, before being forced to spin out his Bitcoin holdings into a separate account for investors. The best estimates I've seen are that there's about $10 trillion of gold value in the world, some in jewelry, some in central banks, some in things like ETFs.