The great innovation of the blockchain isn’t purely technological (Byzantine Fault Tolerance was a thing before Satoshi). It is social. Global, non-violent consensus combined with permission-less access enables anyone to build previously impossible tools for human interaction. Blockchains may be inefficient linked data lists, but that’s not the point. The point is they remove the need for a centralized authority to coordinate access grants. Everyone can participate, and, importantly, no one is excluded. The breakthrough is in its voluntary nature.