Nah, gold is. But bitcoin has huge potential, even if limited by the State to "just" the black market.
Most of people still trust things that are typically tangible when it comes on having its value. Becasue if you want to earn or you deal with transaction such as trading it is much better to look at gold for you to trade in for sure income and transactions.
bitcoin is the strongest crypto currency in the world we all know and recommend, but if we compare it with some paper money though the value of those paper money in the market are low than bitcoin but they are know as legal currencies in market all over the world while the value of the bitcoin is very high from those currencies but is not legalized in the world it all. when the bitcoin will legalized in the world it all it will be strongest currency in the world.