Laws & Principles
The Peter Principle — 'People Rise to Their Level of Incompetence'
Laws & Principles
Poe's Law — Online, Parody and Sincerity Are Indistinguishable
Laws & Principles
Sturgeon's Law — '90% of Everything Is Crap' and Why That Defuses Every Critic
Laws & Principles
The 10,000-Hour Rule — Is 'Practice 10,000 Hours and Become Elite' Actually True?
Laws & Principles
Wirth's Law — Software Gets Slower Faster Than Hardware Gets Faster
Laws & Principles
Zipf's Law — Why #2 Is Half of #1 and #3 Is a Third, Everywhere You Look
Logic Puzzles
The 100 Prisoners Problem — the Box-Opening Trick That Lifts Survival from ~0% to 31%
Logic Puzzles
12 Coins and a Balance Scale — Finding the Fake in 3 Weighings by Counting Information
Logic Puzzles
The Blue-Eyed Islanders — What Changes When Everyone's Knowledge Is Said Aloud
Logic Puzzles
The Bridge and Torch Problem — 4 People, 17 Minutes, and Pairing the Two Slowest
Logic Puzzles
The Tower of Hanoi — the Recursive Puzzle Where 64 Disks Take 580 Billion Years
Logic Puzzles
The Hat Puzzle — the Single Word “Even or Odd” That Saves 99 of 100 Prisoners
Logic Puzzles
The Two Guards of Heaven and Hell — the One Question That Works on Liar and Truth-Teller Alike
Logic Puzzles
Logic Puzzles: the Two Guards, the River Crossing, the Blue-Eyed Islanders and More
Logic Puzzles
The River Crossing Puzzle — Wolf, Goat and Cabbage, a 1,200-Year-Old Problem
Logic Puzzles
The Secretary Problem — Why Skipping the First 37% Is Mathematically Unbeatable
Logic Puzzles
The Zebra Puzzle — the 15-Clue Deduction Known as “Einstein's Riddle”
Unsolved Problems
The ABC Conjecture — a “Proof” Published 10+ Years Ago Still Divides Mathematics
Unsolved Problems
The BSD Conjecture — a Different Formula Secretly Predicts Whether Answers Are Finite
Unsolved Problems
The Collatz Conjecture — A Child's Game That Has Beaten Math for 80 Years