A discussion of the panel I moderated at TAM9 this year, titled "The Ethics of Paranormal Investigation." Topics include: Is it acceptable to use deception in the course of unmasking someone else's deception? What do you do when the person claiming paranormal powers is a child? How much do you feel obligated to ensure the confidentiality of the people you're investigating? And do you have any responsibility, as a mentalist or magician, to make sure your audience understands what you're doing isn't real?

(ETA: Changed the title, since it was misleading!) How is rationality like artificial intelligence? One connection is that both fields are interested in how to handle interdependent beliefs. In this video I explain why your brain is *not* like an AI, and why that means you end up believing contradictory things.