Fungibility is something other cryptocurrencies have and that could be added to bitcoin via a hard fork. That's one of the strengths of cryptocurrencies: they

Fungibility is something other cryptocurrencies have and that could be added to bitcoin via a hard fork. That's one of the strengths of cryptocurrencies: they can adapt. And, in my opinion, which version is most valuable is decided by the community -- not the miners, but the people who are buying and selling.