There was a great concept that came up at #FediForum - the identity of Theseus.
Perhaps it's okay if we have MANY identities, so long as we can reliably bind them together. Imagine `rel=me` links on angeldust.
Servers might come and go, but my identity straddles all of them (somehow, TBD) in a way that can be unified at the UX level by other servers.
Sean mentioned this in his article:
https://deadsuperhero.com/my-dream-fediverse-platform/