It is better to not comparing between bitcoin, gold, and fiat because each of them has different although right now, we can use bitcoin as the payment method. People still using fiat for making the transaction, and people use gold as their investment for their future, but many of them don't know about bitcoin so they might only know gold and fiat. If they can know and learn bitcoin, I think they will use bitcoin as the other investment type, and they will know that there is not the only bitcoin that will be their investment, but the altcoin can be the next option for the investment.