Complications
Over time, too many circles create complexity and confusion. Too many circles can be the same as not enough. Simplicity is always hidden behind complexity, though, and the reverse of this is also true. The basic operation of circles (yes, no, maybe) provides all the information we need to escape the confusion. Everything else is superflous. No matter how many circles, it all reduces to one circle. (Image: http://www.mathsyear2000.org )