While closely following the discussions spawned from the recent Tcl/Tk 9.0 release, I've noticed a point that keeps coming up: the absence of closures. Usually the cue for every Tcl hacker in the world (a very large mob, let me tell you) to start showcasing various contraptions to emulate them. So here's my turn. What kind of closures §But first, let me explain that what I think of when I read the