- #248 — Order & Freedom
- Continuity: Discovering the Lessons behind the World’s Longest-lived Organizations | Alexander Rose
- Luke Burgis
- Special Episode: Engineering the Apocalypse
- Adam Rogers | Full Spectrum: The Science of Color and Modern Human Perception
- #247 — Constructing Minds
- danah boyd – Patreon Special (2009)
- Sean Carroll | The Passage of Time & the Meaning of Life
- #246 — Police Training & Police Misconduct
- Frank Brodhead
- #245 — Can We Talk About Scary Ideas?
- David Pescovitz (2009) – Patreon Special
- Nathaniel Rich | Second Nature: Green Rabbits, Passenger Pigeons, and the Birth of a New Ecology
- #244 — Food, Climate, and Pandemic Risk
- Kenya (Robinson)
