Web 3.0 (the semantic web) [1] never had traction or impressive results. DBpedia and Freebase are/were clear examples that if we structure realities (whatever it means) into data structures such as RDFs we can create more impactful queries and results than normal search engines and databases. IMHO the main obstacle for the semantic web was transforming content to a standard data structure. Once this is [quasi]solved the other processes are well known in computer science.I was playing with LLMs to convert content to RDF or JSON structures with good results. You can interact with an LLM and ask to create those structures and insist on going deeper with some guidance.
Do you think we are there or close enough?
[1] https://en.wikipedia.org/wiki/Semantic_Web