So a while ago I showed with Golem how Datashards (previously Magenc/Crystal) could be used so that "content could survive nodes going down". https://gitlab.com/spritely/golem/blob/master/README.org
I'm realizing that what the more interesting demo would be to show, now that we have "mutable datashards" URIs, how you can make a user profile that can also survive if a server goes down. You just point your datashards URI to a new inbox on a different server and push that update to the network!