> But you should feel bad about writing a LOOP that mutates a bunch of state under the hood. I think you omitted a word there: one should not feel badly about

> But you should feel bad about writing a LOOP that mutates a bunch of state under the hood. I think you omitted a word there: one should not feel badly about writing a state-mutating LOOP. That's okay, and often the best solution to a problem. Heck, I wrote a state-mutating TAGBODY just yesterday …