A PASSION PROJECT

• The Quiz — two ways through.The classic five-minute version (twenty questions, Likert-style) gets you onto the map fast. The Inheritoris a fifteen-minute country-house murder mystery — a reclusive philosopher is dead, you're one of seven inheritors, four chambers each hide an anomaly, two unexpected twists, ten distinct endings based on your archetype. Same 16-dimensional placement underneath; delivered as genre fiction. The home page leads with the Inheritor; the classic is one click away.
• The Arena — argue a philosopher, get scored.Debate any of ten thinkers (Socrates, Nietzsche, Arendt, Confucius, Mill, others — across three difficulty tiers) on everyday or philosophical topics. An impartial judge scores both sides on logical rigor, philosophical principle, and engagement — noton whose side won. Elo system, leaderboard, PvP against other humans. The Arena is Mull's answer to "what do I do once I know where I sit?"
• 560 philosophers, 10 archetypes, 12 topics, 30 matchups.The constellation is the heart of the site — a 2D map you can wander. Every philosopher page is a small editorial essay; the archetype pages go longer. Topic explainers cover the questions philosophers keep returning to (free will, the trolley problem, meaning of life, what we owe each other). The vs pages are head-to-head comparisons across the 16 dimensions.
• The Dilemma, the Diary, the Exercises.Smaller surfaces, but the daily-return ones. A philosophical dilemma each day with the option to write a response. A personal philosophical diary. A short library of contemplative exercises. All optional.
• Daily Spar.A 5-minute philosophical sparring match. One philosopher, one topic, one turn each. Sonnet judges in 30 seconds. Rotates daily. Different from the Arena because it’s built for the user who doesn’t have 20 minutes for a full debate but wants the rigor practice.
• The Pilgrimage — 30 days for your archetype.A 30-day course shaped for the kind of mind you turned out to be. Ten archetype-specific arcs, each with its own phases, prompts, and per-flavor enrollment lens. One prompt per day. Different from the dilemma in that it has a curve — by Day 30 your map has moved.
• The Crucible — daily real action.Not a hypothetical. A small actual thing to do today, chosen from a pool of sixty rotating prompts. Tomorrow Mull asks how it went. Stoic evening-review meets daily moral practice.
• The Wandering Question — one question per week.A single question travels with you Mon-Wed-Fri-Sun. First response, then kindred takes, then far takes, then your own synthesis. Weekly arc, real ending each time.
• Argument Diary.Log a real argument from your life and Mull returns a steelman of the other side, two specific fallacies in your framing, and three kindred philosophers’ takes. Journal-with-feedback.
• Personal Anthology + Year-in-View + Capability Atlas.Three persistent surfaces. The Anthology is your commonplace book — save passages and verdicts from anywhere. Year-in-View is your annual record, updated the day you live it. The Atlas tracks six skills (Rigor, Depth, Consistency, Range, Self-Awareness, Synthesis) with level-up badges that fire on every completed action.
• Classes (for educators).Teachers can spin up a class, share an invite link, and post philosophy assignments to students. Free for anyone with an academic email address (.edu / .ac.* / .k12.*.us auto-detected).

• No ads, ever.No banners, no tracking pixels, no sponsored newsletter slot. Your reflections are between you and the model. Nobody pays for the privilege of putting an ad next to them.
• No selling your data.If you make an account, we hold your email and your saved quiz attempts — nothing else. You can download everything we have on you as JSON, or delete your account outright, from the public-profile settings page (sign in, then visit Account → Public profile settings). Your map is private by default; public profiles are opt-in only.
• Not VC-funded.No investors, no growth quotas, no board demanding a 10× return. The product changes when we decide it should change, not when a quarterly review demands traction.
• The free tier stays generous.If Mull grows past break-even, every dollar of margin goes back into the product: better LLM analysis, scholars to verify philosopher positions, illustrators to redo the figures properly, content for the learning lab. If it grows past that, none of these principles change.

Hard global cap regardless of tier: max 10 Spars + 5 Arena debates + 5 Argument Diary calls per day per user, and a site-wide daily AI-spend ceiling that auto-pauses new inference if exceeded. Cost protection, not retention squeeze.