Rationally Speaking #138 - Ian Morris on, "Why the West rules -- for now"

Rationally Speaking #139 - Eric Schwitzgebel on "Moral hypocrisy: why doesn't knowing about ethics make people more ethical?"

Rationally Speaking #140 - Kenny Easwaran on, "Newcomb's Paradox and the tragedy of rationality"

Rationally Speaking #141 - Dan Sperber on "The Argumentative Theory of reason"

Rationally Speaking #142 - Paul Bloom on "The case against empathy"

Rationally Speaking #143 - Scott Aaronson on "The theorem that proves rationalists can't disagree"

Rationally Speaking #144 - Bryan Caplan on "Does parenting matter?"

Rationally Speaking #145 - Phil Tetlock on "Superforecasting: The Art and Science of Prediction"

Rationally Speaking #146 - Jesse Richardson on "The pros and cons of making fallacies famous"

Rationally Speaking #147 - Andrew Gelman on "Why do Americans vote the way they do?"