Maxis had gone down the multiplayer road to make the simulation more realistic by letting cities in the same virtual landscapes share elements such as pollution, crime and resources such as coal, she said.
If I were president of the United States, I could do something about that by deploying a fence, by deploying a virtual fence, by having a BorderStat system like my COMSTAT system that brought down crime in New York, and just stopping people from coming in, and then having a tamper-proof ID card.