> Imagine a Facebook that keeps your list of friends, hosted on your own website, up-to-date, rather than vice-versa. Basically, the Semantic Web was going to be a web where everyone gets to have their own personal REST API, whether they know the first thing about computers or not.
Sounds more or less like what the Urbit project (https://urbit.org/) is trying to accomplish. Not an endorsement; it has serious flaws just like everything else. This is a very hard problem to solve. But I sure do hope someone manages to figure it out.