Conversation

No, sorry :) If it's any consolation, I think it's a fairly obvious idea if you're coming from one of several systems perspectives
The problem is that most people who grok this stuff do so through a technical, poetic or mystical language rather than everyday language
Well, I think I did invite you to pitch a ribbonfarm post or two? If you want to write about this on rf, you're welcome :)
If you like the technical side of this stuff, I recommend David Lewis (possible worlds) and Richard Stalnaker (language games) in philosophy
Surprisingly little engineering use of this, in part because it is computational intensive to do multiverse decision support.