Neal Brennan is a stand-up comic, actor, writer, director, and host of the podcast "Blocks." Catch his new special, "Neal Brennan: Crazy Good," on Netflix. www.nealbrennan.com Learn more about your ad choices. Visit podcastchoices.com/adchoices

Paul Stamets is a mycologist and advocate for bioremediation and medicinal fungi. He has written, edited, and contributed to several books, including "Mycelium Running: How Mushrooms Can Save the World," and "Fantastic Fungi: How Mushrooms Can Heal, Shift Consciousness, and Save the...