Mathematics

13 ideas, each explained on one page with a 60-second lesson you can play right there.

Casino game A casino game is a game of chance where players gamble cash or chips on random outcomes, usually against the casino itself.
Compound Interest Compound interest adds earned interest back to your starting principal, causing savings and debts to grow faster over time.
Drake Equation The Drake equation is a mathematical formula that estimates how many active, communicative alien civilizations exist in our galaxy.
Entropy Entropy is a measure of how widely energy in a system spreads out and becomes unavailable to do useful work.
Game Theory Game theory uses mathematics to model strategic choices between multiple players whose decisions and payoffs affect each other.
General Relativity General relativity explains gravity as the warping of space and time by mass and energy, replacing Newton's concept of an attractive force.
Hofstadter's law Hofstadter's law is the rule that complex work always takes longer than expected, even when you factor in the law itself.
Interest Interest is an extra fee a borrower pays to a lender on top of returning the original amount borrowed.
Interpersonal ties Interpersonal ties are the information-carrying connections between individual people in a social network.
Monty Hall Problem Switching doors in the Monty Hall problem raises your chance of winning from 1/3 to 2/3 because the host filters out a losing door.
Neural Scaling Law Neural scaling laws describe how model error reliably drops as parameters, training datasets, and computing power increase.
Survivorship Bias Survivorship bias occurs when we evaluate only surviving entities and overlook failures, leading to false conclusions and inflated success rates.
Volatility (finance) Volatility is a statistical measurement of how much an asset's price swings over time, calculated as the standard deviation of its returns.