[nwf]

You may be interested in reading, if you haven't, our 2011 position paper on Dyna. (The 2012 paper on what I think you would call propagator networks was fun, but is nothing you don't know already, I'm sure.)

http://dyna.org/wiki/index.php/Publications

[edwardkmett]

Indeed. Our old discussions about "omega-continuous semiring homomorphisms" as the way to try to make something half-way between Dyna and the datalog bits I was working on have been very much present in my mind lately. =)