This is really cool. One problem I've noticed with real time evaluation is infinite loops. I've played with an realtime javascript editor/evaluator and I inadve

This is really cool. One problem I've noticed with real time evaluation is infinite loops. I've played with an realtime javascript editor/evaluator and I inadvertently locked the browser (and the editor) when writing code. Imagine writing a "while (true)" loop and it evaluates before you've finished the break condition.