Bitcoin, according to traditional economic concepts, is not considered a thing of value, as it has no value in its essence, but rather an increasing core on it, and it is not supported by any central body, such as the central bank, or an economic force that stands behind it and maintains its value. Therefore, with a simple explanation, Bitcoin is something that has no value.
It is like someone who wants to measure height in kilograms, he will get a zero result, so if Warren Buffett changes his way of thinking, he will see Bitcoin as a real value.