Whereas most technologies tend to automate workers on the periphery doing menial tasks, blockchains automate away the center. Instead of putting the taxi driver out of a job, blockchain puts Uber out of a job and lets the taxi drivers work with the customer directly.

Some bitcoin users see the hard fork as in some ways violating their most fundamental values. I personally think these fundamental values, pushed to such extremes, are silly.

Blockchains will drop search costs, causing a kind of decomposition that allows you to have markets of entities that are horizontally segregated and vertically segregated.

Vitalik Buterin Quotes