Hi Tadhg, really interesting read. I like the idea you're positing here. Unfortunately I'm afraid the words you've chosen for it aren't too likely to receive wide spread use in the way you suggest. A/synchronous isn't exactly a casual word to begin with, but more of a term of art. In fields like education and media studies, it's already well established as a term indicating interaction in real time or over time. Hence, the casual definition is essentially the definition, while your definition is one that no one else really uses. Meanwhile tempo, the root from which you've created temporany doesn't have much connection to place, so that also feels like a stretch. Again, I think the ideas you're positing here are really important, but I don't think your word selection helps those ideas to come across.