Buried in Facebook’s Libra white paper are two sentences hinting the project's ambitions go even further than minting a global currency.
Digital identity is scattered and insecure. ConsenSys' uPort project wants to rework the internet to make "self-sovereign identity" a reality.
Blockchains are inefficient, and worth the cost only when censorship-resistance is required. For money, it clearly is; for identity, it just might be.