Talk:Message Passing

"CAR" in this context needs expansion or a reference; I have no idea what it means and have no way to find out: "it is a pair of a dictionary (on CAR)"

Added reference to Polymorphic_Types_(PMTs)#Pairs on Feb 21.

ZeroMQ Chat Service should use PUB/SUB instead of PUSH/PULL. PUSH/PULL is for round-robin load balancing and wouldn't work for more than one participant, PUB/SUB is a broadcast for everybody.