Mark, Completely unrelated comment. I came across a blog post at Overcoming Bias that I thought you might find interesting. Since you talk about complexity quite often I thought that this post would give something to consider. The post is called "The Futility of Emergence".
Thanks for sending that - I apologize for the delay in responding.
I understand his semantic logic but not his physics here. He's right that many ppl use the term in the fashion he describes but that doesn't mean that "Emergence" is conceptually analogous to "phlogiston".