"In the old SimCity, you started with all the technology at once, but in this one you have to wait for things to become invented. In other words, technology expands as you play the game. For instance, you start out with coal, oil, and hydroelectric, but as time goes by, solar and nuclear are invented. We also tried to make the learning feedback loops more realistic. In SimCity 2000, a lot of the feedback comes through reading the Sim's newspaper."