That's neat; the ability to move state backwards is a powerful tool. I'm building my own language around reactivity and state management ( http://www.adama-lang

That's neat; the ability to move state backwards is a powerful tool. I'm building my own language around reactivity and state management ( http://www.adama-lang.org/ http://www.adama-lang.org/ ), and I'm getting to the point where I could demo replaying a board game backwards.