Health economics is about health and money. We don’t have all the money of the world to spend on health. So, how much and how do we have to invest in health for all? Health economists try to provide answers to these and other questions. And with what we do, I argue that we make the world a better place. Shouldn’t we all try that? This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx