I have a Lisp success story. I wrote a decompiler in C++, building cruft on top of cruft, until it became too unwieldy (c.70,000 lines), so I rewrote it from th

I have a Lisp success story. I wrote a decompiler in C++, building cruft on top of cruft, until it became too unwieldy (c.70,000 lines), so I rewrote it from the ground up in Lisp. Now it's 20,000 lines, far more elegant, and works a heck of a lot better. However, I did experience a certain amount of burnout on this - I haven't written anything nearly as extensive since (eg, no more than 1000 lines of Lisp).