Philosophy for Clearer Thinking
Stop reacting and start reflecting. Learn to dismantle bad arguments, spot hidden assumptions, and build a personal toolkit for making better decisions.
Like Duolingo, but for Philosophy for Clearer Thinking. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
A short one: 13 levels across 2 sections, about 26 minutes end to end, roughly 5 days at five minutes a day. It moves through The Thinker's Toolkit and Living with Wisdom. It starts from scratch.
Free forever · No credit card · iPhone & Android

Key ideas in Philosophy for Clearer Thinking
- Philosophical claims rely on unstated premises about values
- Every philosophical conclusion requires a specific foundation
- Consistent statements can rely on unproven foundations
- Identifying foundations helps evaluate conclusions
- Assumptions act as a mental shortcut that bypasses critical evaluation
- Every philosophical conclusion requires a specific 'foundation' to be true first
- Unconscious assumptions can lead to 'blind spots' in an argument
- Recognizing how unexamined assumptions lead to logical errors
- The Socratic method uses questioning to move from a surface claim to a deeper belief
- Identifying the unstated belief behind a philosophical claim
- Questioning 'Why' reveals the limits of what a person actually knows
- Using Socratic questioning to peel back layers of a claim
- Philosophical systems are fragile; changing one 'bottom' piece can collapse the 'top' conclusion
- Different schools of thought often differ only by one or two starting assumptions
- Predicting how changing an assumption flips a conclusion
- Premises act as the foundation that must support the conclusion
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Philosophy for Clearer Thinking the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
In philosophy, what must be true for a conclusion to actually hold weight?
Get it right to open this lesson and 12 more in the app.
Where Philosophy for Clearer Thinking takes you
- 1
The Thinker's Toolkit
- Spotting Hidden Assumptions
- Building Better Arguments
- 2
Living with Wisdom
- Deciding What is Right
- Knowing What You Know
2 sections · 4 units · 13 levels. Built to play, not to enroll.
Tomo is in ChatGPT
Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.
Add Tomo to ChatGPT- What to ask
- “Make me a Tomo course on black holes.” “Turn this chat into a Tomo course.”
- What you get
- Quick questions with instant feedback, hearts and stars, ready to play in about a minute.
- Where it goes
- No sign-up to start. Connect your Tomo account and your streak carries on in the app.
You pick the voice
Philosophy for Clearer Thinking is taught in the Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start Philosophy for Clearer Thinking today.
Download Tomo, search Philosophy for Clearer Thinking, and play your first lesson in under a minute.