I was thinking about the film, good and evil, how in this film (and others) heroes can't exist without villains. Batman vs The Joker, David Dunn vs Mr Glass, Mr Incredible vs Syndrome the list goes on.
Each has a Nemesis. Syndrome brought Mr Incredible out of retirement.
This led me to think about yin yang, and I wanted to reflect this in the design in some way so I made a design which could be printed either way around using an ambigram.