Many Americans are frustrated with healthcare, but the system is hard to understand. This site shares clear mental models of how US healthcare works: how money flows, who the stakeholders are, which policies and laws shape it, and the history behind them. It also highlights what's changing, including new laws, policies under debate and innovative initiatives finding better ways forward. The goal is to give patients, voters, physicians and policymakers a foundation they can build on, so they can engage with the system and help improve it.