The Rules of Quantum Reality
Discover the bizarre rules that govern the universe at the smallest scales, where particles act like waves and barriers can be bypassed. Learn how these counterintuitive principles explain everything from how the sun shines to how quantum computers compute.
Like Duolingo, but for The Rules of Quantum Reality. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
A short one: 11 levels across 2 sections, about 22 minutes end to end, roughly 4 days at five minutes a day. It moves through Dismantling Common Sense and The Quantum World in Action. It starts from scratch.
Free forever · No credit card · iPhone & Android

Key ideas in The Rules of Quantum Reality
- Waves spread out through space and produce interference fringes and diffraction patterns
- Particles arrive at a single localized point and exchange energy in discrete lumps
- Both light and matter show localized detection alongside spread-out wave patterns depending on the measurement
- Even when sent one by one, quantum particles build up an interference pattern over time
- The wave associated with each particle passes through both slits simultaneously
- Interference is not caused by multiple particles colliding, but by each particle interfering with its own potential paths
- Every moving object has a quantum wavelength, but it shrinks as mass and speed increase
- Everyday macroscopic objects like baseballs or people have wavelengths billions of times smaller than an atomic nucleus
- Wave effects like diffraction only become noticeable when an object passes obstacles or openings comparable in size to its wavelength
- Light arrives in discrete energy packets called photons whose energy depends on frequency or color, not brightness
- Knocking an electron free requires a single photon with enough punch to clear the metal's threshold
- Higher brightness just delivers more individual photons per second; if each photon lacks enough energy, none can knock an electron loose
- In quantum physics, unmeasured particles do not have hidden, predetermined values waiting to be discovered
- Prior to measurement, a quantum object's location is described by a probability wave spread across space
- A definite location only emerges when the particle interacts with a detector or environment
- Superposition means the particle simultaneously embodies multiple potential states at once
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 The Rules of Quantum Reality 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.
When a physical particle hits a detector screen, how does it deliver its energy?
Get it right to open this lesson and 10 more in the app.
How to learn The Rules of Quantum Reality, step by step
Go in order. 11 short levels across 2 sections, about 22 minutes in all, five minutes a day.
- 1
Dismantling Common Sense
- Light as Particles, Matter as Waves
- Living in Probabilities: Superposition and Observation
- 2
The Quantum World in Action
- Passing Through Solid Walls: Quantum Tunneling
- Interconnected States: Entanglement and Information
2 sections · 4 units · 11 levels. Built to play, not to enroll.
Questions about The Rules of Quantum Reality
How do I learn The Rules of Quantum Reality?
Go in order: start with Dismantling Common Sense, then The Quantum World in Action. On Tomo that's 11 short levels, about 22 minutes in all, played five minutes a day. Start free and play the first level in under a minute.
Is there a Duolingo-style app for The Rules of Quantum Reality?
Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. The Rules of Quantum Reality is one of its free courses, and you can type any other topic to get a course of your own.
Is The Rules of Quantum Reality free?
Yes. The Rules of Quantum Reality is playable on Tomo's free plan, which doesn't expire. No credit card, no waitlist. Download the app and start your first lesson.
How long does it take to learn The Rules of Quantum Reality?
11 levels across 2 sections, about 22 minutes of play in total. It's built for five minutes a day, so you finish it a little at a time instead of all at once.
Do I need any background to start The Rules of Quantum Reality?
No. It's pitched at a beginner level, so it starts where you are and builds up. If you can tap a phone, you can start.
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
The Rules of Quantum Reality is taught in the Bestie style: your friend who just gets it. 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.
More Science on Tomo
How Quantum Physics Works
Step inside the strange rules that govern the universe at its smallest scales. Discover why light acts like both waves and particles, how probability replaces certainty, and why these bizarre quantum quirks power modern technology.
How Quantum Physics Works
Explore how reality behaves when you zoom down to the atomic scale. Build an intuitive grasp of wave-particle duality, superposition, and entanglement without needing complex mathematics, and see how these bizarre rules power modern technology.
Quantum Physics: Rules of the Ultra-Small
Explore the mind-bending rules that govern the universe at its smallest scales. Discover how particles act like waves, why uncertainty rules reality, and how quantum quirks power the technology in your pocket.
Quantum Physics in Your Pocket
Move beyond the mystery and see how quantum mechanics powers your everyday life. Discover how particles behaving like waves make your smartphone, medical scans, and future computers possible.
How the Quantum World Works
Discover the surprising rules of nature at its smallest scale. Learn why particles act like waves, how atoms communicate across space, and how quantum oddities power the device in your hand.
The Weird World of Quantum Physics
Explore the strange rules that govern the universe at its smallest scale, where objects can be in two places at once and looking at something changes its behavior.
Start The Rules of Quantum Reality today.
Download Tomo, search The Rules of Quantum Reality, and play your first lesson in under a minute.