Mind Blown
50 boards, 64 lessons, 492 review questions and 25 narrated videos, in 8 chapters. Read them in order. Each chapter builds on the one before.
Start here → Fold a Paper to the Moon
Contents
1Numbers that run away9 lessons
Doubling to the moon, compounding, one row in ten million, and the chance puzzles that fool almost everyone.
- 01Fold a Paper to the Moon8 Q
- 02Why You Cannot Fold Paper Past Seven Times8 Q
- 03Compound Interest, the 8th Wonder8 Q
- 04One Row in Ten Million8 Q
- 05The Birthday Paradox8 Q
- 06Monty Hall, the Illegal Switch8 Q
- 07The 99 Percent Test That Is Usually Wrong8 Q
- 08The Statistic That Reverses Itself8 Q
- 09Real Numbers Start With 1 Too Often8 Q
2Where logic bites back11 lessons
A secret shouted in public, questions no computer can answer, truths no proof reaches, bigger infinities, and systems nobody is steering.
- 01A Secret Shouted Across a Room8 Q
- 02The Question No Computer Can Answer8 Q
- 03Truths Math Cannot Prove8 Q
- 04Some Infinities Are Bigger Than Others8 Q
- 05Cut One Ball Into Two Identical Balls8 Q
- 06How Long Is a Coastline8 Q
- 07The Road That Slows Everyone8 Q
- 08No One Is in Charge8 Q
- 09The Hunters and the Hunted Take Turns7 Q
- 10A Rounding Error That Rewrote the Weather7 Q
- 11The Map Is Not the Territory8 Q
3Waves: sound and light8 lessons
Every sound as sine waves, the falling siren, silence made of noise, blue skies and seas, the microwave, and the mirror.
4What stuff does10 lessons
You are mostly empty space. Ice floats, hot water freezes first, wings lift, soap tears germs, onions sting, batteries hold a cliff, a transistor switches.
- 01You Are Empty Space8 Q
- 02Why Ice Floats8 Q
- 03Hot Water Can Freeze Faster Than Cold8 Q
- 04How Planes Actually Fly7 Q
- 05How Soap Destroys Germs8 Q
- 06Why Onions Make You Cry8 Q
- 07A Battery Stores a Chemical Cliff7 Q
- 08A Transistor Is Just a Switch7 Q
- 09What Fire Actually Is7 Q
- 10Heavier Does Not Fall Faster7 Q
5Space, time and the very small6 lessons
Starlight as a time machine, relativity in your phone, black holes, entanglement, the watched particle, and the silent sky.
6Your body6 lessons
Written in four letters, guarded by wanted posters, fooled by sugar pills, switched off for surgery, asleep a third of its life, and untickleable by itself.
7Your mind6 lessons
The hole you never see, the giant moon, years that speed up, the memories you cannot reach, and confidence that grows as knowledge shrinks.
8Earth, sky and deep time8 lessons
Why summer is not closer to the Sun, what the Moon's phases are not, why the night is dark, an eye nobody designed, Earth's history as one year, ground that moves like fingernails, a blanket that lets light in, and ten checks for the kitchen table.
Borrowed from other tracks (4)
You don't need to take those tracks. These are the only lessons this track uses from them, and each is linked where it is needed.
- Cold Is a Lie: fridge, AC, heat pumpHow Things Work · needed for Hot Water Can Freeze Faster Than Cold
- Your Remote Throws Invisible Light, the EM spectrumHow Things Work · needed for A Blanket That Lets Light In
- Attention & Cognitive LoadPsychology · needed for The Person Who Changed Mid-Sentence
- How Memory WorksPsychology · needed for The Person Who Changed Mid-Sentence