Upcreation is my term for the peculiar, profound, and still mysterious way by which complex structures appear in the universe. By complex structures I mean galaxies, stars, planets, life, DNA, termite mounds, rain forests, human minds, and the internet. We would like to upcreate artificial minds and artificial life. However, much to our dismay, upcreation turns out to be something very hard to imitate. For some goals, like making a human-like artificial intelligence in computers, bumping a system up to the next level of complexity has so far been a total failure. A large part of the difficulty lies in our lack of a good understanding of what happens during emergence. What does it mean to make a new level, how do we recognize one, and what are its preconditions?