Mo Money Mo Miles
United Airlines’ new frequent flier scheme creates a perverse incentive for business travelers.
Making (a Huge Number of) Facebook Users (Very Slightly) SadderHow multiplying very tiny effects by gigantic numbers strains our quantitative intuition.
The Beauty of Bounded GapsA huge discovery about prime numbers—and what it means for the future of math.
Deadly MathIs it right to say that the Norwegian terrorist attack was proportionally worse than 9/11?
Is the Mega Millions Lottery a Mug's Game?It all depends on when you play—and what value you put on a dollar.
Building a Better World SeriesWhy the Fall Classic isn't the best way to find the best team in baseball.
The Case of the Missing ZeroesAn astonishing act of statistical chutzpah in the Indiana schools’ grade-changing scandal.
The Mathematics of NarcissismThe common statistical thread between psychiatric diagnosis and grad school rankings.
13 Stripes and 51 StarsA mathematician figures out the best way to jam an extra star onto the American flag. Plus: Generate patterns for every possible flag up to 100 stars.
We're Down $700 Billion. Let's Go Double or Nothing!How the financial markets fell for a 400-year-old sucker bet.
Algebra for AdulterersWhat every philandering politician and traveling salesman should know about the odds of getting caught.