This world is run with far too tight a rein for luck to interfere. Fortune sells her wares; she never gives them. In some form or other, we pay for her favors; or we go empty away. – Amelia E. Barr
You can find academic and industrial groups doing some relevant work, but there isnt a focus on building complex molecular systems. In that respect, Japan is first, Europe is second, and were third. – K. Eric Drexler