Circular Cousins
Cousins (circles) are brothers and sisters who are the sons and daugthers of sons and daughters of the same parents. This is the circle multiplying (surviving). The circle can redraw its family (we can substitute cousins for brothers and sisters). Over time and large expanses of space, cousins (circles) connect every person to every other person. Eventually we notice all circles (cousins) are the same. (Image: http://pasture.ecn.purdue.edu/~tao/ssc/Graphics/Circles.gifc/Graphics/Circles.gif )