For one, Neo4j is an implementation and SQL is not. As for clarity, SQL, although by far the most widespread query language is a shitty language in many respect

For one, Neo4j is an implementation and SQL is not. As for clarity, SQL, although by far the most widespread query language is a shitty language in many respects... again a separate issue from the relational model. In any case you’re conflating a storage engine and a query language. There’s no reason an RDBMS implementation cannot be tuned for graphs, and there is no inherent lack of generality in the relational model which seems to be the prior posters claim. Whether Neo4j is a useful piece of software is a different topic.