 Secondly, by investigating individual-level evolution, we show that the critical point is not an evolutionary stable state. On the contrary, strong spatial self-sorting effects increase the selection strength , and make it an evolutionary unstable state.
<coherence>  Secondly, by investigating individual-level evolution, we show that the critical point is not an evolutionary stable state. On the contrary, strong spatial self-sorting effects increase the selection strength , and make it an evolutionary unstable state.
 Secondly, by investigating individual-level evolution, we show that strong spatial self-sorting effects increase the selection strength , and make it an evolutionary unstable state.