💡 Finance Insights
Educational notes unpacking the assets and concepts behind our games
Not investment advice · no returns are guaranteed
Gold's 10-Year Journey — How Much Has It Risen from 2016 to 2026?
From $1,150/oz in 2016 to where it stands today — trace gold's decade of change, key turning points, and what-if returns.
What Is the Big Mac Index? — Understanding the World Economy Through a Burger
Can a burger explain global economics? Learn how the Big Mac Index works, from its origin to the latest 2026 rankings.
Can You Guess a Stock Just by Its Chart? — Chart Analysis Basics
A beginner-friendly guide to reading stock charts. From candlestick basics to 5 famous patterns — learn chart analysis the easy way.
Real Take-Home Pay — How Much Do You Actually Get from a $50K Salary?
Your $50K salary doesn't mean $50K in your pocket. See take-home pay tables, compare tax systems across countries, and get negotiation tips.
History of Seoul Apartment Prices — How Much Did Gangnam Apartments Used to Cost?
From a few thousand dollars in the 1970s to millions today — trace how Seoul apartment prices evolved through economic crises and booms.
Bitcoin Price History — From 2 Pizzas to $100,000
In 2010, someone spent 10,000 BTC on two pizzas. What would those be worth today? The complete history of Bitcoin's price journey.
Top 10 Most Expensive Things in the World — Mind-Blowing Prices
A painting for $450M? A car for $18M? Discover the world's most expensive items — from art to antimatter.
The Secret of Exchange Rates — What Happens to Your Wallet When the Dollar Rises?
When the dollar rises, your overseas trips get pricier and iPhones cost more. Here's how exchange rates affect your daily life.
Compound Interest and the Rule of 72 — How Time Shapes Value
How compound interest and the Rule of 72 work, and why a 10-year head start reshapes on-paper outcomes. Educational reading, not investment advice.
Market Cap Top 10 Through the Ages — How the Throne Changed Over 20 Years
From ExxonMobil's reign in 2005 to Apple and NVIDIA's battle for #1 — trace 20 years of shifting market cap rankings.
Why Humans Are Bad at Guessing Prices — 5 Biases That Sabotage Your Intuition
When you're bidding or guessing a market price, your brain trusts intuition over numbers — and intuition is wrong more often than you think.
What Inflation Feels Like in Daily Life — How One CPI Line Becomes Your Grocery Bill
A single CPI headline fans out into rent, coffee, and electricity. Here's how — and why your felt inflation isn't the headline.
How Historical Price Memory Distorts Decisions
First price, highest price, cheapest price — three memories that silently rewrite the price you're looking at right now.
Beginner Guide to Reading a Simple Price Chart
Axes, ranges, log scales, and split adjustments — only the essentials, explained.
Why Bitcoin Price Memory Is So Volatile
The same asset, but each person remembers a totally different price range. The reason sits inside Bitcoin's volatility itself.
Gold Price History in Plain English — From Bretton Woods to Now
Why has gold moved the way it has? Here is the long story, without the jargon.
Real Estate Price Guessing and Anchoring Bias — Why One Listing Can Sway You
The quiet power of a single recent sale — how it reshapes your sense of 'reasonable.'
CEO Pay Numbers: Why They Surprise People
Understanding the structure behind disclosed CEO pay — cash, stock, and options change the meaning of the headline number.
Oil Price History for Beginners — Why Crude Is Tangled With Politics
From the 1970s oil shocks to the 2020 negative print — the scenes that matter, compressed.
How Salary Expectations Get Distorted — Mean, Median, and the Top Tail
Social feeds and news amplify top outliers, so our sense of 'normal pay' drifts upward without us noticing.
Big Mac Index Explained Simply — In 5 Minutes
Why does the same burger cost different money around the world? Use the Big Mac Index to feel PPP.
Price Perception in Shopping Psychology — How a Tag Opens Your Wallet
Prices ending in 9, dual-label sales, bundling — how retail signals hack our brains.
How to Compare Prices Across Time Periods — Inflation, FX, and Units
$100 in 1975 and $100 in 2026 are not the same unit. Here's how to compare fairly.
Why "Higher or Lower" Games Feel Addictive
Feedback loops, range uncertainty, and one-mistake tension — why this format hooks the brain.
Financial Quiz Games as Learning Tools — The Power of Gamified Repetition
Why quizzes and games work for finance education — and what it takes to learn, not just play.
Silver Price History — Gold's Quieter Sibling Through the Decades
Silver gets less attention than gold, but its century-long record sits at the crossroads of industry, money, and speculation. Here's the run from 1980's Hunt squeeze through 2026.
Where Your Paycheck Goes — Four Basic Buckets for Reading a Household Budget
Your paycheck arrived but the balance looks the same — what changed? A short, data-grounded look at where money actually goes in Korean and U.S. households.
Why Old Stock Charts Lie — A Short History of Stock Splits
"Apple traded at $22 in 1980." The split-adjusted version of that number is dramatically lower. Here's why splits redraw historical charts, with five iconic examples.