Ask HN: What game development tool is this?

[dhardy]

Does anyone know what tool is being used in this video - http://www.break.com/index/smart-video-game-design-tool.html

It looks pretty impressive.

[lee337]

Bret Victor is working on it - http://www.hteumeuleu.fr/bret-victor-et-le-futur-des-interfa....

clojurescript version @ https://github.com/ibdknox/live-cljs/

[dhardy]

I knew someone on HN would know. Thank you sir.

[gwillis13]

Hmm,

The part with the pause mechanic is interesting. I'm interested to know what tool that is as well.