@ebrown p,
That you may, and the answer is as complicated as the signature.
Evolution is generally seen as a physiological process, but it is also mental. I believe evolution occurs just as much within one lifetime inside of the human brain as it does in generations of physiological developments. The topic would make a good thread, perhaps, but for this question:
Because I would like to promote the idea that we are always evolving, and we should try to evolve in the best way possible.
A Lyn