System dynamics has much to offer in social sciences such as economics, urban planning, and politics. Policy makers have historically drawn from their own intuitions for their policies, but their intuitions often point to the wrong solutions. These mistakes are not necessarily caused by incompetence or malice, but because people cannot accurately simulate a complex system in their heads. With the world becoming increasingly complex, the need for new tools is clear. System dynamics can become such an effective tool to deal with the complex systems.