In practice, blockchains tend to be extremely centralized without a deliberate effort to prevent them from becoming so. (Cf https://www.nber.org/papers/w29396 h

In practice, blockchains tend to be extremely centralized without a deliberate effort to prevent them from becoming so. (Cf https://www.nber.org/papers/w29396 https://www.nber.org/papers/w29396) You can get around this in a permissioned blockchain with a minimum quorum size, but at that point, you're basically running a fancy git repository with a number of mirrors.