'''Although they (complex adaptive systems) differ widely in their physical attributes, they resemble one another in the way they handle information. That common feature is perhaps the best starting point for exploring how they operate.'''

- Murray Gell-Mann, The Quark and the Jaguar. W.H. Freeman. 1994

- in Melanie Mitchell, Complexity: A guided tour. Oxford University Press. 2009

- in Joseph Lizier Information theory and self-organisation youtube, github