Magnitudle Journal
Curiosity, scale, and estimation thinking
Daily curiosity, estimation thinking, and question deep-dives from the world behind Magnitudle.
Looking for today's puzzle? Play the daily Magnitudle game.
Folding a Piece of Paper 50 Times
A simple thought experiment that reveals how explosive exponential growth really is — and why our intuition fails so completely to anticipate it.
Read articleAre These Cities More Than 1,000km Apart?
Most people's sense of geographic distance is badly miscalibrated. Here's a quick test — and why it matters more than you'd think.
ReadHow Many Legal Move Sequences Are Possible in the First 3 Turns of Chess?
Chess starts with just 20 possible moves. Three turns later, there are over 119 million possible game states. Here's how to estimate it — and why the number matters.
ReadParseword: The New Game from the Wordle Creator
The creator of Wordle has a new daily puzzle game. Here's what Parseword is about, and what it says about where the daily game format is heading.
ReadHow Many Times Do All the World's Managed Honeybees Flap Their Wings Per Hour?
Honeybee wings move at around 230 beats per second. Across trillions of bees, that adds up to something astonishing. Here's the estimation.
ReadHow Many Oscar Nominations Have Ever Been Given Out?
The Oscars have been running for nearly a century. Here's how to estimate the total nomination count — and what the aggregate reveals about the institution.
ReadThe Best Wordle Alternatives in 2026 — Actually Reviewed
Looking for games like Wordle? Here are the best daily puzzle games in 2026, with real opinions on what makes each one worth playing.
ReadWhat Is a Fermi Problem?
Fermi problems teach you to estimate what you can't look up. Here's where the technique came from and how to actually use it.
ReadHow Many Words Are in the Harry Potter Series?
You could look it up. Or you could work it out — and get surprisingly close. Here's how.
ReadWhat Makes a Great Daily Game?
Not every daily puzzle becomes a habit. Here's what separates the games that stick from the ones you forget about after a week.
ReadHow Big Is a Billion, Really?
A billion sounds like a big number. Here's why your intuition about it is probably completely wrong — and what that means for how you see the world.
ReadHow Many Chickens Are Alive on Earth Right Now?
There are more chickens alive right now than all wild bird species combined. Here's how to estimate the total — and why the number is so much larger than people expect.
ReadGames Like Wordle, But With Numbers
Number-based daily puzzle games are a different challenge from word games. Here's what's out there and how each one tests a different kind of thinking.
ReadHow Does Magnitudle Scoring Work?
Learn how Magnitudle scores your estimates, why order-of-magnitude scoring makes sense for big numbers, and how to actually improve your score.
ReadWhat Is an Estimation Game?
Estimation games let you reason your way to an answer rather than just recall one. Here's what makes them uniquely satisfying — and why they work as a daily format.
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