I like the idea - kinda back to a decentralised web of peers like it was in the early days.

However the complexity of the technology is certainty off-putting - I'm not enough of an expert to tell how much of that complexity is adherence to a tech stack ( like RDF, SPARQL ) and how much is simply the complexity of the underlying problem.

I would say the guys behind it seem fairly pragmatic. As an example while the technology allows you to self host, they acknowledge that most people won't be able/want to - and are looking to enable providers as well.

I think one of the problems with the LD/RDF community is it can attract the type of person that things 'we just need a single well defined data model for the universe'.

I think trying to get one schema to rule them all is doomed to failure - for two reasons

- for ontologies to be effective all the users of that ontology have to have a shared understanding of the ontology - simple a written down definition isn't enough.

- the world can be viewed from multiple angles - even if you could agree one view, it's not going to be optimal for all use cases.

However as I said, the SOLID project doesn't appear to be falling into that trap - it appears very focused and pragmatic.