Note to future-me: Lasp provides composition of CRDTs. It should be possible to build a system with subjectively aggregated identities where each particular view of who is part of the identity results in a coherent system state, as long as all data types are CRDTs. Lasp could provide a framework for solving the "everything must be a CRDT" constraint. Add in a replication scheme optimized for fractal identities, and you have a really fascinating research project.