Matt Dillahunty is an American atheist activist, former president of the Atheist Community of Austin, and host of The Atheist Experience. He is a magician, public speaker, and debater, having shared stages with the likes of Richard Dawkins, Jordan Peterson, and Sam Harris. In this episode of the Cosmic Skeptic Podcast, Matt speaks to Alex about his meta-ethical framework, before discussing veganism at length, something he has never done in this format before.

Dr Michael Shermer is an American historian of science, editor-in-chief of Skeptic magazine, and author of nearly 20 books, including Heavens On Earth, The Moral Arc, and Why People Believe Weird Things. He speaks to Alex about how we should respond to the inevitability of death, and why we shouldn't be afraid of it.

Armin Navabi is an Iranian Canadian ex-Muslim and secular activist, author, podcaster, and founder of Atheist Republic. He speaks to Alex about the troubles he faces spreading his secular message and how to find meaning in a world without God.