It is possible to exclude fair division from the possible initial strategies in
the divide-ten-dimes game and start at random starting points that include
the rest. If we do this all strategies other than demand 4 dimes and demand 6
dimes are eliminated and the 4{6 polymorphic population falls into a linking"
cycle of period 2. If we then turn on a little bit of random experimentation or
mutation" allowing the possibility of Demand 5, we nd that a soon as a very
small clump of Demand 5 players arises, it systematically grows until it takes
over the whole population-as illustrated in gure 1. Justice is contagious.12