The podcast episodes provided discuss various topics related to alchemy, including the connection between alchemy and the Voynich manuscript, the alchemical processes behind creating water-powered cars and transmuting elements, the spiritual and metaphysical aspects of alchemy, and the use of alchemy in perfumery and storytelling.

For example, the episode 'Free Energy & the Death of Stanley Meyer - Moxy Fusion, Alchemy, Monatomic Gold | Ken Swartz' discusses the alchemical process of transmuting elements like tungsten into precious metals using moxifusion, while the episode 'The Case of the Confusing Bitter Beverages: Vermouth, Amaro, Aperitivos, and Other Botanical Schnapps' traces the origins of bitter alcoholic beverages to the practices of alchemists.

The podcast episodes also touch on the broader themes of alchemy, such as its connections to spirituality, consciousness, and personal transformation.