A field guide to imagined cases
Questions that make the familiar feel strange.
Step into a carefully described situation. Follow the assumptions, test the argument, and see where thoughtful readers disagree.
132 entries 12 fields 11 reading paths
Explore the collection
Find a question worth following.
Search by idea, person, or subject. Each entry leads to its full explanation and sources.
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A route through the ideas
Paths through the collection.
Read in sequence, pause over a question, and follow the connections that change your view.
- Start Here: 10 Thought Experiments for Beginners
- Understanding Consciousness and Identity
- Ethics and Difficult Moral Decisions
- Reality, Knowledge, and Skepticism
- Paradoxes, Probability, and Rational Choice
- The Universe, Time, and Physical Reality
- Artificial Intelligence and the Future of Intelligence
- Language, Meaning, and Self-Reference
- Science, Evidence, and Explanation
- Time, Fate, and Freedom
- Cooperation, Choice, and Collective Decisions