While you can construct a crypto currency with finite supply, you can construct an infinite number of crypto currencies. For crypto to act as gold; everyone ha

While you can construct a crypto currency with finite supply, you can construct an infinite number of crypto currencies. For crypto to act as gold; everyone has to agree on elevating a single one (Bitcoin variation BTC) to this special status and have everything else evolve around it. While BTC holders has incentive to encourage this, it is not obvious that everyone else has.