[mike_hearn]

The Glitch paper was discussed previously on HN and is very interesting:

http://research.microsoft.com/pubs/211297/managedtime.pdf

It's great research. Near term applicability would be more useful to me as an IDE plugin that works with existing reactive frameworks. For instance, it turns out that the latest Java UI framework (JavaFX) has a reactive/lazy functional bindings framework in it. Every property of every UI widget can be connected to other properties or derived expressions of those properties. Of course Java itself has no support for this so it's all framework level stuff. An IDE plugin / embeddable DSL that understood these constructs and allowed for real-time debugging like in the videos would be useful indeed: whilst I love binding UI widgets to the backend data model with that framework, debugging it can be a total timesink.

[seanmcdirmid]

It is not easy, or,perhaps even possible, to take reactive programming model A and combine it with reactive programming model B. E.g., the editor in this demo is written in C#/WPF via Glitch, WPF supports data binding to recompile expressions, but since this is what glitch is doing also (at a much more general level), we can't use it with data binding.

You could have glitch for an existing language, but it would look more like ReactJS for JavaScript.