We hear a lot about how DNA sequencing is changing the world. Our ability to read the code of life is taking us a level deeper in our understanding of the human body and of the other life forms around us. Sequencing is all about “reading.” Occasionally, not very often, we’ll get someone to the program who talks about “writing” the code of life. Isn’t this where we’re going? To a world where, OK, now we understand the code, let’s write our own.