 As a first approach to the dynamics of sender-receiver games, let us restrict attention to the four strategies (Sender 1, Receiver 1), (Sender 2, Receiver 2), (Sender 3, Receiver 3), and (Sender 4, Receiver 4). Figure 16 illustrates the state space under the continuous replicator dynamics for the sender-receiver game consisting of two states of the world, two signals, and two responses, where players are restricted to using one of the previous four strategies. One can see that evolution leads the population in almost all  cases[13]  to converge to one of the two signaling  systems.[14]