Samuel Benjamin Harris (born April 9, 1967) is an American author, neuroscientist, and podcast host. His work touches on a wide range of topics, including rationality, religion, ethics, free will, neuroscience, meditation, psychedelics, philosophy of mind, politics, terrorism, and artificial intelligence. Harris came to prominence for his criticism of religion, and Islam in particular, and is described as one of the "Four Horsemen of Atheism", along with Richard Dawkins, Christopher Hitchens, and Daniel Dennett.[3][4] His academic background is in philosophy and cognitive neuroscience