Thanks I think this is an insightful interpretation of my question. I think I have been satisfactorily answered elsewhere on the thread. It totally makes sense now, but on the other hand I still don't see how this tech helps much. It would improve things marginally, in theory but it seems like a bandaid to what you really want, which is a steady stream of animation frames. it feels like a concession to the impossibility of creating rich smooth realtime animation in the presence of a multiprocess operating system.