How to Play Guess the answer to Fermi estimation questions with 6 or less tries. After each guess, you'll see if your answer was too high (arrow pointing down) or too low (arrow pointing up). The feedback color shows how close you are: orange means your guess is within ±50% of the correct answer, red means it is further away. You win if your guess is within ±10% of the correct answer. Close
First seen: 2025-08-02 18:15
Last seen: 2025-08-02 21:15