Christian Schafmeister here - thank you for those kind words.  I&#x27;m using Common Lisp as the basis for a programming environment for developing programmable matter (big, smart molecules and materials). I&#x27;ll be announcing it soon - stay tuned.  Designing molecules is one of the hardest problems in the world and it needs the most expressive, powerful language - Common Lisp. Oh - and C++, there&#x27;s plenty of C++ in there as well :-).