Revised Report on the Propagator Model (2011)

Sounds similar to tuple space models like Linda (see https://en.wikipedia.org/wiki/Tuple_space ) and the blackboard model in AI (see https://en.wikipedia.org/wiki/Blackboard_system ).

Has anyone used propagators in practice? I find it a very interesting concept, but have not encountered it in the wild.

This system seems very similar to Prolog.