No matter what maze they're put in, they always walk and never hit a wall. Therefore they always receive the highest level of fitness. To solve this problem, a predator can be introduced into the environment. The predetor eats walkers it catches. Spinners are easy targets and quickly killed off.
Logic serves as a predator in the meme community.
The fourth component is replication. The fifth and last component of Evolution. In the rest of the cases it seems to be endless. As long as this is using the language of convienence, I'd agree.