Bruce Schneier wrote a great opinion article on aspects of thrust in blockchain technologies and “the idea that blockchains can somehow eliminate the need for trust persists”.
What blockchain does is shift some of the trust in people and institutions to trust in technology. You need to trust the cryptography, the protocols, the software, the computers and the network. And you need to trust them absolutely, because they’re often single points of failure.
Read his full article on Wired.