On this episode of ID the Future out of the vault, science historian and host Michael Keas talks with fellow science historian Michael Flannery about his book Intelligent Evolution: How Alfred Russell Wallace’s World of Life Challenged Darwin. Flannery tells of Darwin’s involvement in the Plinian Society, a “freethinkers” group at Edinburgh University in Scotland where he studied medicine as a teenager. It was there that he first encountered radical philosophical materialism, the worldview that laid the philosophical foundation for his work in evolution. This is Part 1 of a two-part conversation.