"That which unifies the computing environment" has a name: operating system. An operating system must abstract across heterogenous hardware and software components, exposing them as a single API to programmers and users. A web3 operating system must combine networking, identity, databases, authentication, and software distribution. There is currently only one serious, production-ready operating system that meets these critera: Urbit. Urbit, in turn, is only missing one piece: rich, seamless read/write access to global blockchain state.