...other than that, though, nobody agrees on a workable definition of "emergence", let alone a theory of emergence. But at least I can explain this much with a small GIF.
(Last week, I experimented with explaining stuff through a blog-comic. This week, I'm experimenting with a GIF-splanation. What do you think? Also, it's public domain, so it's free for you to use in your own blog or presentation or whatever! Download the GIF here.)