ux-phi

ux-phi

Interactive Philosophy Simulations

Argue your way into great moments of philosophical history. Inhabit a character and discover philosophy as conversations in real (ok...simulated) places, between people with commitments, about things that matter the most.

Athens, 5th Century BCE: Plato's Republic

The Socratic Experience

Go down to the Piraeus with Socrates and Glaucon. Argue whether justice is just the advantage of the stronger with Thrasymachus. Try to stand up to Socrates’s questioning, and discover why Meno called Socrates the torpedo fish. You are Kratinos, a young Athenian, the son of a merchant, with strong opinions and a skeptical soul.

Paris 1945

The Existentialism Experience

You step off the train in the Gare de Lyon two days before Sartre’s lecture that starts the existentialist craze. Hear Sartre declare that existentialism is a humanism in a room so packed that people faint. Argue with de Beauvoir about freedom and collaboration. Drink a Pastis with Camus at the Café de Flore. Listen to Boris Vian play trumpet in the cellars of Saint-Germain. You are Marguerite Langlois, 23, from Lyon, with a letter of introduction to study philosophy with Jean Hyppolite at the Sorbonne.

Oxford 1952

The Ordinary Language Philosophy Experience

You are a young Californian on a Rhodes Scholarship, eager to see what Oxford philosophers are up to. Argue about illusions and other minds at one of J.L. Austin’s Saturday Morning sessions. Talk to Iris Murdoch, Phillipa Foot, and G.E.M. Anscombe about everything that the ordinary language philosophers are missing. Take the train to London and argue with A.J. Ayer about sense data or take a break from philosophy and go listen to some jazz in Soho.

Jena 1799

The German Romanticism Experience

You arrive in Jena as a young theology student from Tübingen, drawn by Fichte's reputation, but Fichte has just been forced out of the University. What do you do now? Attend the Wunderkind’s Schelling's lectures on Naturphilosophie. Argue about irony and art with Friedrich Schlegel and August Schlegel. Meet Caroline Schlegel, the center of the Jena social and intellectual world. Stick around until 1801 and you’ll see Hegel shows up with his fashionable "Titus" haircut (Napoleon's haircut).

Recent updates

  • 2026-07-04Jena 1799: Narrator’s prose improved (using Henrich von Kleist as inspiration)
  • 2026-07-03Long sessions now have a single, persistent, growing memory: each new stretch of conversation is folded in exactly once and never overwritten; commitments and readings from the very beginning should stay intact all the way through. (HT: Errol Lord)
  • 2026-07-03All simulations now run on Sonnet 5; 4.6 is now the backup
  • 2026-07-02Hegel’s Lectures on Aesthetics now in development in the Lab: See the works of art Hegel is discussing as he lectures
  • 2026-07-01Oxford Viva 1952 now in development in the Lab: Pick a short essay, get grilled on it by J.L. Austin and G.E.M. Anscome
  • 2026-06-23Jena 1806: The World-Soul on Horseback added to Fellow Tier: talk with Hegel the night his *Phenomenology* is finished but trapped in Jena, while Napoleon prepares to attack the city
  • 2026-06-23Plato’s Republic: Validated Socratic persona against adversarial redteam of antagonistic agents
  • 2026-06-16Oxford 1952: more detailed personas for Ayer, Foot, and Alderton (HT: Errol Lord)
  • 2026-06-09Timeline and map mechanic added to Names and Descriptions simulation
  • 2026-06-03Names and Descriptions added to /lab: a six-room journey through the classic philosophy-of-language sequence — Frege → Russell → early Wittgenstein → Strawson → Donnellan → Kripke (1918–1970). With some new mechanics

In development

Sit in on Hegel’s lectures on Aesthetics and see the works of art he discusses

Berlin 1828-29: Hegel’s Lectures on Aesthetics

Live through the debates about sense, reference, definite descriptions, and proper names

Names and Descriptions 1918-1970

Step behind Rawls’s veil of ignorance in 1971 America

Original Position 1971

Queen Christina and Descartes, with a focus on the Meditations

Stockholm 1647

Descartes and Princess Elisabeth

Egmond Binnen 1643

Weimar on the Pacific: Adorno, Horkheimer, Brecht, Mann, Schoenberg, Lang

Los Angeles 1943