[jonahkagan]

Awesome stuff. John Resig, if you're in here, can you give any details on the challenges of instantly updating the Processing sketch? I can just wait for the blog post, but I'm really curious.

Also, what components exactly are you planning to release open source? The other work in this area that I've been able to find is very tightly coupled to the rendering library (d3 or PJS). Is the Khan Academy system open to alternate rendering libraries?

[kinleyd]

Yeah, real awesome stuff, John Resig! Your follow through on Bret Victor's 'Inventing on principle' is mind blowing. I'm getting my kids on it right away. Thank you.