Bitcoin is now the best-performing currency. This is not relevant, and arguments over what money is and  also not relevant and have been going on for years with reference to Bitcoin. .... This kind of gold-backed Bitcoin might even give the dollar a run for its money as a reserve currency.

Money is money when and only when all parties declare it to be money. In this basic philosophical sense, Bitcoin is money just as US Dollars, Swiss Francs or any other currency are money. From a more practical point of view, money is usually described as a medium of exchange, as a store of value.

It's not competitive as a payment system, so maybe its value is as money. But it makes terrible money.

Bitcoin is money, just a little better and cheaper than the alternatives.

Therefore, we conclude that Bitcoin is a currency that makes terrible money.