Paradox
Swampman Paradox
What is the Swampman Paradox? The Swampman Paradox is a brain-twister from the world of philosophy. Imagine one day, a…
The Invisible Gardener
Defining The Invisible Gardener The Invisible Gardener is an idea that two people talk about when they can't agree if…
Zeno’s Paradoxes
What is Zeno’s Paradox? Zeno's paradoxes come from ancient Greek philosophy. They're clever puzzles that still make people scratch their…
Twin Earth Paradox
What is Twin Earth Paradox? The Twin Earth Paradox invites us to think about something really interesting: what do our…
Mary’s Room
Understanding Mary's Room Mary's Room is a brain-teaser that philosophers use to learn about how we understand the world. It's…
Chinese Room Paradox
What is the Chinese Room Paradox? The Chinese Room Paradox is a challenge to the idea that a computer can…
Trolley Problem
What is the Trolley Problem? The Trolley Problem is a question of ethics—the study of what is right and wrong.…
Schrödinger’s Cat
What is Schrödinger's Cat? Schrödinger's Cat is a famous idea that comes from the world of physics, a branch of…
Brain in a Vat
What is it? A Brain in a Vat is a thought experiment which asks you to imagine something really wild.…
Ship of Theseus
What is the Ship of Theseus? The Ship of Theseus is a puzzle that makes us wonder about identity—what it…