Maria Popova is a reader and a writer, and writes about what she reads on The Marginalian, formerly Brain Pickings (themarginalian.org), which is included in the Library of Congress’s permanent digital archive of culturally valuable materials. She hosts The Universe in Verse—an annual celebration of science through poetry—at the interdisciplinary cultural center Pioneer Works in Brooklyn. She grew up in Bulgaria immersed in music and mathematics.Jacqueline Novogratz is the Founder and CEO of Acumen. In 2001, Jacqueline founded Acumen with the idea of investing philanthropic patient capital in entrepreneurs seeking to solve the toughest issues of poverty. As a pioneer of impact investing, Acumen and its investments have brought critical services like healthcare, education and clean energy to hundreds of millions of low-income people. Jacqueline is the New York Times best-selling author of The Blue Sweater and Manifesto for a Moral Revolution: Practices to Build a Better World. She has been named one of the Top 100 Global Thinkers by Foreign Policy, one of the 25 Smartest People of the Decade by the Daily Beast, and one of the world’s 100 Greatest Living Business Minds by Forbes, which also honored her with the Forbes 400 Lifetime Achievement Award for Social Entrepreneurship. Credits:Paul Holdengraber - Co-Creator, Host, OLA DirectorAnthony Audi - Co-Creator, Researcher, OLA DirectorAlejandro Cohen - Co-Creator, Producer, ComposerChristian Pitt - Production Coordinator Erin Cooney - Copy, ProductionDublab Team