> It can also be extremely expensive, both in data storage and in the energy required to maintain it. Bitcoin has the most expensive consensus algorithm the wor

> It can also be extremely expensive, both in data storage and in the energy required to maintain it. Bitcoin has the most expensive consensus algorithm the world has ever seen, by far. When Bruce complains that Bitcoin's consensus is expensive he really compliments Bitcoin's security and resistance to attacks on immutability. He's spot on that private blockchains and most public blockchains are nothing but hype, that opinion is not news though.