"Simplicity" is also not well defined, and seems to be very very different for a novice or more advanced coder. Many seem to think fewer lines of code means simpler, or chaining 20 lines/calls is clearer than temporary variables, or use lambdas everywhere is better since function definitions are harder to grok. From my experience, elegance is often something very clever, and elegant by definition, but also nearly impossible to understand.

So, I guess "simplicity in understanding".