How Everything Fits Together
Make sense of the world across every scale, from the atoms in your morning coffee to the rise of civilizations and the birth of stars. This course connects physics, biology, history, and human culture into one coherent framework. Learn to look at ordinary reality and see the deep mechanics driving it all.
Like Duolingo, but for How Everything Fits Together. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
27 levels across 4 sections, about 54 minutes end to end, roughly 11 days at five minutes a day. It moves through Connecting Daily Life to Physical Reality, The Logic of Living Systems, The Architecture of Human Society, and Deep Time and the Cosmic Canvas. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in How Everything Fits Together
- Atoms are overwhelmingly empty space, with their mass concentrated in a tiny nucleus surrounded by distant electrons
- The sensation of solid touch comes from the negative electric charges of electrons repelling each other, not physical particles colliding
- Elements heavier than hydrogen and helium cannot form under normal planetary conditions; they require stellar fusion or explosive cosmic events
- Common metals like iron and gold in everyday artifacts were forged in dying stars and dispersed by supernovae billions of years ago
- Metals conduct current because their electrons drift freely across a shared network of atoms
- Brittle materials like ceramics shatter because their rigidly locked atomic bonds cannot slide past one another without breaking
- Flexible materials like rubber bend or stretch because long molecular chains can straighten out without breaking apart
- Earth is effectively a closed system for matter; almost no new atoms arrive or disappear
- Every atom in everyday water and food has recycled continuously through living organisms, oceans, atmosphere, and rock over billions of years
- Modern artifacts begin as raw geological ores extracted from the earth
- Raw ores must be chemically smelted and refined into industrial materials before manufacturing
- Finished components are assembled across global supply networks before shipping to end users
- Energy cannot be created or destroyed, only transformed from one form to another
- Every time energy is used to do work, some of it inevitably disperses as useless heat
- Electrical appliances like fans ultimately convert all their input electricity into thermal energy in their environment
- Fossil fuels like coal and oil are ancient plant and algae matter that captured sunlight millions of years ago
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 How Everything Fits Together 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.
Imagine resting your hand on a sturdy wooden table. Why doesn't your hand fall right through it?
Get it right to open this lesson and 26 more in the app.
Where How Everything Fits Together takes you
- 1
Connecting Daily Life to Physical Reality
- Deconstructing Everyday Objects
- Tracking the Flow of Energy
- 2
The Logic of Living Systems
- Reading the Blueprint of Life
- Decoding Human Cognition and Instinct
- 3
The Architecture of Human Society
- Navigating Collective Human Inventions
- Tracing Technological Evolution
- 4
Deep Time and the Cosmic Canvas
- Reading Deep Geological Time
- Mapping the Cosmic Lifecycle
4 sections · 8 units · 27 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
How Everything Fits Together is taught in the Storyteller style: every lesson is a story. 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
Reading Human Anatomy
Move beyond isolated muscle names to understand how the body organizes space, transfers force, and routes vital plumbing. Learn to navigate the living blueprint using landmarks, compartments, and kinetic chains.
Anatomy: Bones, Muscles, and Nerves
Bridge the gap between memorizing isolated terms and understanding the human body as an integrated machine. Master skeletal landmarks, muscle attachment logic, and peripheral nerve pathways.
How the Human Body Fits Together
Explore the elegant architecture of your own body from the inside out. Learn how your skeleton, muscles, circulation, and vital organs coordinate to keep you upright, moving, and alive.
Biology: The Logic of Life
Move beyond memorizing parts to understanding the systems that drive all living things. Explore how energy, information, and environment interact to create the complexity of the natural world.
Decoding the Universe
Learn to read the messages hidden in starlight and understand the invisible forces that shape our cosmos.
The Logic of Living Systems
Discover the governing mechanisms that animate life across molecular, cellular, and organismal scales. Learn how biological systems balance energetic budgets, coordinate genetic circuits, and navigate evolutionary trade-offs.
Start How Everything Fits Together today.
Download Tomo, search How Everything Fits Together, and play your first lesson in under a minute.