Ah, well, you can implement Brainfuck in itself pretty tersely too :-P http://www.hevanet.com/cristofd/08.html http://www.hevanet.com/cristofd/08.html (This i

Ah, well, you can implement Brainfuck in itself pretty tersely too :-P http://www.hevanet.com/cristofd/08.html http://www.hevanet.com/cristofd/08.html (This is not to belittle the point you are making, I just can't resist being That Guy. Lisp manages to be both a usable language and pretty easy to interpret, whereas Brainfuck is... something else.)