His definition of currency is nonsensical. He gave a valid point, but it has little to do whether a unit is a currency or not. Wasn't he the one who initially called bitcoin "rat's poison"? Wonder who he referred to as "rat" that the bitcoin is poisoning.
That was Charlie Munger, but Bitcoin fans tried to pin it on Buffett too, because he is a billionaire and happened to be in the same room as Munger at the time.
