Ahhh, I see, so not only does the closure scoop up the value of variables at 'define-time', but each closure keeps track of the state of its variables (its 'fre

Ahhh, I see, so not only does the closure scoop up the value of variables at 'define-time', but each closure keeps track of the state of its variables (its 'free variables?') so that their values may increment over time rather than reset. Thanks for you (rather cool) illustration. I tested the code and it also worked :)