I always love seeing anything following the philosophy of emergence[0], I think the "composition of simple rules leading to organic unpredictable complexity" is a powerful metaphor that can help understand nearly any natural phenomena.

It's exciting to see the increasing emergence of this idea (see what I did there) in modern science & industry, such as in MIT's Mediated Matter lab[1].

[0] https://en.wikipedia.org/wiki/Emergence [1] http://matter.media.mit.edu/tools