Updated the explainer and added a demo to view for discussion.
I've gone through the explainer language and updated everything to reflect what (I think) we believe, and added an interactive demo to cover some of the harder-to-grasp aspects of how a spatially-presented <model> will need to appear.
As always this is meant primarily as a starting point for discussion!
@cabanier @LaszloGombos I'd love to give folks a chance to read this ahead of TPAC so we can discuss / disagree with it - totally open for revision but if we can the update (and the cool demo!) up for folks to see that will help a lot.
@cabanier @LaszloGombos what do you want to do with the updates / information in this document? Given how little is in a spec yet, and how useful it would be to point folks to an up-to-date explainer I think it would be worth continuing to develop. I'd love to get this information somewhere, and then start working out what the appropriate level of detail is for the specification document beyond that.
/agenda - I'd like to work out how folks want to reason about / land the contents of this PR, cc @LaszloGombos @cabanier @AdaRoseCannon