- argument fallacies (e.g., begging the question)
- artwork & lives of artists
- calculus
- common law, famous cases & judgements
- deep sea & space
- cults and weird groups (e.g., Synanon)
- famous irrational numbers (e.g., pi, Euler’s number, golden ratio)
- Latin vocab
- logarithms
- music theory tree (by Stephen Evans)
- Socrates, Plato, Aristotle
jan 19 2026 ∞
apr 4 2026 +
apr 4 2026 +