I don’t know why exactly – probably something to do with years of noodling on Web architecture – but I seem to have a knack for sniffing out self-description problems.

So while working on RDF Forms (specifically the implicit intent section), I realized that RDF Schema is not self-descriptive; by virtue of not defining its own media type, it does not permit a message sender to declare whether the semantics of the message depends upon RDF Schema being understood or not.

Issue submitted.