The document discusses how developing rigorous measurement systems for human, social, and natural capital could help bring those forms of capital to life in the same way that standardized measurement systems helped manufactured capital. It argues that tests, surveys and assessments currently used to measure human, social, and natural capital do not allow additivity, divisibility or mobility in the way that would be needed. Developing measurement approaches based on mathematical models like Rasch models could help create standardized metrics for human, social, and natural capital. This could help nurture living capital and maximize individual and collective potential, as standardized measurement has for manufactured capital and economic growth.