I did a Masters degree in Evolutionary and Adaptive Systems (AKA EASy) at the University of Sussex in 2007/2008.
The degree covered a lot of things, in a nutshell I would say the main part that appealed to me was the idea of there being no Gods, no central planners, just things evolving over time, and individuals interacting with each other causing patterns to emerge that noone really 'built in' or planned for. This is a thread that lives me still, in an interest in Decentralisation, both technological and political.
A really lovely example of complexity and emergence is murmurations of starlings, when you get a huge flock of them in the sky, they manage to stay together as a coherent whole, and these beautiful shapes and patterns form as they fly around with each other, but there's no 'head bird' so to speak, noone choreographing everything. And so that kind of swarming behaviour has been modelled and used in computer graphics in films for example, to make birds or bats or shoals of fish look realistic.
My final project on the Masters was working on some software (NeurAnim) to visualise artificial neural networks.
One of my projects (not a great one to be honest, but I still quite like the idea) was based around some kind of algorithm based on fish swimming that worked as an information retrieval mechanism for you. I still like this idea - info daemons.
I enjoyed a side module in generative art while there too.