[John Sowa:](http://www.w3.org/mid/4426BF93.1070503@bestweb.net)
> RDF and OWL are legacy systems that must be supported, but
semantics, pragmatics, and ontology are where the action is.
RDF and OWL are too limited, clumsy, and inefficient to support
any serious work in knowledge representation and reasoning.
An enormous amount of effort in the SemWeb literature addresses
workarounds for getting up to the level where AI was in the 1980s.
> My recommendation is to import anything in those languages into
Common Logic and do the real work with CL-based languages.
This comes from one of the top authorities in the knowledge representation and reasoning field.
RDF and OWL are a compromise between two camps, KR/reasoning one one hand and web/data integration on the other. My tent is in the latter camp, and I blame all of RDF’s problems on the former. I hadn’t really realized that some folks on the other side are unhappy too.
(My first thought, on reading John’s statement, was: “Don’t feed the trolls.â€)