Biological or ‘natural’ evolution is a wonderous example of evolution in action. So much so that it is often taken as the definition for the word ‘evolution’. Here though, a more general definition of ‘evolution’ is taken so that it encompasses non-biological systems as well. Evolutionary processes can be identified with three key characteristics. 1) Some element or aspect within the system that contain muluable or changeable properties. Using biological evolution as an example, we can define that element as a species. The properties that can be changed are the physical characteristics of individuals within the species population. 2) These changeable properties change in response to environmental pressures. We see this in biological evolution as particular variations within individuals increase or decrease their chances of reproducing and thus their chance of influencing the characteristics of the species as a whole. 3)