CallStrem is much more than that. It is an Interfacing Concept. Which is most easily expressed in functional languages. As a “concept” it can be applied on all different levels: from the micro level of inter-object communication inside programs inside the particular run-time, to the higher level of inter-component communication on some computing platform , to the macro level of inter-service communication over diverse computing platforms and most importantly between: “screen” and a ” cloud”.
I shall be updating this post with useful “good things”, which I hope the comments, hopefully attached to this post will bring.