I guess there's nothing particularly remarkable about it, in the sense that it's just a clickable canvas...drawing the whole thing every time. Modern computers just happen to be pretty fast, so duplicating a couple of lorem ipsum texts 10 times isn't going to create all that much of a barrier to doing such a thing...even if Red is nothing special.
What I'd consider "remarkable" would be if there was some design whereby you were inheriting selection behavior...so it was doing some kind of behavior-preserving coordinate transformation on a fully functional text editor widget. It's not.
So that sort of dampens my interest in looking too much deeper.
The "rotate a form" demo is a more behavior-preserving example, but not a particularly profound one. I'm not completely sure what the pitch is. CSS can do transforms, too. 3-D even.
Boris saw this post and responded by updating his samples with selections on a spiral, so that's good to see that works, and that his plans are somewhat more ambitious than traditional VID:
I don't really have time (yet) with everything else going on to evaluate this stuff. So I'd rather whatever audience Red can get hammers on it to filter out what's good.
(At some point I'll try my hand at a GUI dialect, but I'd like to be reacting to the polished and critiqued version of whatever evolves out of their world.)
It depends on an external function called DECODE-MARKDOWN, which means its starting from a Red-friendly format of some kind.
If DECODE-MARKDOWN produces something parallel to an HTML DOM then this would basically be comparable to the CSS you'd need to render that on a page with proper resize behavior, I guess...