OBSERVATION 01
A SCIENTIFIC REASONING GAME
THREE PLAUSIBLEANSWERS.ONE EXPERIMENTTHAT MATTERS.
Every test costs time, samples, and certainty. You do not win by collecting more data. You win by choosing the control that makes the wrong mechanisms impossible.
1 playable case · 10–12 minutes · No sign-in
HOVER THE EXPERIMENT TO PREVIEW ITS PREDICTION SPLIT
MORE DATA CAN STILL
LEAVE YOU WRONG.
The game rewards experiments that separate hypotheses—not experiments that merely reproduce the same observation.
OBSERVE
Read the signal without pretending it already explains the mechanism.
PREDICT
Commit to what each hypothesis should produce before spending the budget.
ELIMINATE
Use the result to kill explanations that can no longer survive.
YOUR REASONING
LEAVES A FINGERPRINT.
At the end of each case, see where you chased confirmation, repeated low-information tests, calibrated uncertainty, or found the decisive control.
THE NEXT MOVE IS YOURS
DON'T ASK AI
FOR THE ANSWER.
Ask what evidence would prove it wrong.
OPEN THE FIRST CASE