The 3D format is not responsible for those items.
If my proximity to an object triggers things itβs really no different than passing a call to another layer.
Think web resources and hyperlink agnosticism
The common piece I see being talked around here is ownership. I bet that, more than anything else, is what drives the pushback. I was there too. People do not want open 3D, because "land grab", next really big, big thing.
"If only WWW would have charged to make a link...."
People have been floating the idea of 'micro-transactions' since the first days of the commercial world-wide-web. People just don't want to do it. There's a reason why average users made the choice to use the wider internet, instead of things like Minitel.