 What Schelling found was that residential segregation occurs even without a strong racist demand that all of one’s neighbors, or even most, are “of one’s kind”. Even when preference is that just a third of one’s neighbors are “of one’s kind”, clear patches of residential segregation appear. The iterated evolution of such an array is shown in  Figure 20.  See  the interactive simulation of this residential segregation model  in the Other Internet Resources section below. 