- LLM (Large Language Model)
- An AI system trained on vast amounts of text data to generate human-like language; GPT-4 and Claude are examples. Used here to describe the AI systems generating potentially prize-winning fiction.
- Femmephobia
- An aversion or hostility toward femininity as displayed by men, distinct from homophobia; the episode cites researcher William Costello's argument that most male anti-gay sentiment is actually femmephobia.
- Hypomnemata
- Ancient Greek personal notebooks used to record philosophical insights, quotes, and lessons for daily reflection — the precursor to the modern commonplace book, as discussed by George Mack via his friend Henrik Carlsson.
- Cash flow conversion cycle
- The time between a company paying for inputs (inventory, manufacturing) and receiving payment from customers; a negative cycle means the company is paid before it has to pay its suppliers, a structural financial advantage.
- Nominative determinism
- The hypothesis that people tend to gravitate toward roles or identities that match their names; used humorously to note that Cristiano Ronaldo was named after Ronald Reagan.
- Spandrel
- In evolutionary biology, a trait that is a byproduct of another adaptation rather than a direct product of natural selection; used here to describe tears of joy potentially being a crossover effect from grief-signalling tears.
- Dopamine website
- A new South Korean digital service designed to simulate the experience of online shopping or social browsing — browsing menus, filling carts, tracking couriers — without any actual transaction, delivering the dopamine hit without the spending.
- CPUC (California Public Utilities Commission)
- California's regulatory body overseeing public utility companies; the episode discusses its program mandating procurement targets for certified LGBT-owned businesses.
- Iron Cross
- A prestigious German military decoration awarded for bravery or military success; Juan Pujol García received one from Hitler while simultaneously working as a British double agent.
- MBE (Member of the Order of the British Empire)
- A British civil and military honour awarded by the Crown for distinguished service; Juan Pujol García received one for his role as a WWII double agent, making him the only person to hold both an MBE and a Nazi Iron Cross.
- Memetic
- Relating to memes in the cultural-transmission sense coined by Richard Dawkins — ideas or behaviours that spread and replicate through a culture; used here to describe how trends propagate socially.
- Counterfactual thinking
- The cognitive process of imagining alternative outcomes to events that have already happened ('what if I had done X instead?'); discussed as an evolutionary mechanism for learning from near-misses.
- Prolactin
- A hormone associated with lactation and stress responses; mentioned as one of the biochemical compounds found at higher concentrations in emotional tears compared to other tear types.
- Adrenocorticotropic hormone (ACTH)
- A stress-related hormone produced by the pituitary gland; found in higher concentrations in emotional tears, potentially explaining why crying can have a stress-relieving physiological effect.
- Collective effervescence
- Émile Durkheim's concept describing the shared emotional energy and sense of connection experienced during group rituals or events; used by Chris Williamson to describe a possible adaptive function of tears of joy.
- Reciprocal altruism
- An evolutionary theory proposing that organisms behave altruistically toward others expecting future reciprocation; cited as part of the adaptive explanation for survivor's guilt.
- Fin swimming
- A competitive aquatic sport in which swimmers use monofins or bifins to propel themselves at high speed underwater or on the surface; Shavarsh Karapetyan was a 17-time world champion in this discipline.
- Theory of mind
- The cognitive ability to understand that others have beliefs, desires, and intentions different from one's own; used here to describe Juan Pujol García's ability to model what his rejectors needed in order to make himself indispensable.
- Pithy
- Concise and forcefully expressive; used by George Mack to describe the type of tweet or insight that feels momentous when encountered but is quickly forgotten.
- Hegemon
- A dominant entity — state, power, or force — that exerts controlling influence over others; used loosely by Chris Williamson to describe the Western tendency to treat 'Asia' as a single monolithic cultural bloc.