+ ;; This iterates by "recursing" on itself by calling itself
+ ;; (as the message handler) again. It used to be that we had to do
+ ;; this, because there was a bug where a loop which yielded like this
+ ;; would keep growing the stack due to some parameter goofiness.
+ ;; That's no longer true, but there's an added advantage to this
+ ;; route: it's much more live hackable. If we change the definition
+ ;; of this method, the character will act differently on the next
+ ;; "tick" of the loop.
+ (<- (actor-id clerk) 'update-loop)))