Why do so many people believe in conspiracy theories? Do we need to evaluate the evidence for ourselves, or should we just trust the experts? This week on Philosophy Talk, we’re discussing science and skepticism, and the role that trust plays in deciding what's true.

The Intellectual Dark Web has developed into an academic counterculture, with an enormous and rapidly growing fan base. While it’s wonderful that there are sites where taken-for-granted orthodoxies can be challenged in accessible ways, I have grave concerns about the way that this movement is unfolding.