A MindSnap feature
Five turning points, one per flagship collection: Constantinople 1453, Socrates in Athens, the tulip collapse of 1637, Milgram's laboratory and the first Impressionist show. You choose, you get a verdict, and then you read what actually happened and why it still matters.
Last updated: August 2026
New Haven, 1961
A MindSnap feature
You answered a newspaper ad: four dollars for an hour helping science study memory. You read word pairs; when the 'learner' in the next room errs, you flip a switch. At 150 volts he shouts that his heart is bothering him and he wants out. The man in the grey coat says, evenly: 'The experiment requires that you continue.'
Make the call
Reading that Constantinople fell is information. Choosing where to put your last reserve, and then finding out, is an experience with a stake in it. Decision-first learning works because the answer arrives as a resolution to something you personally committed to.
Every outcome explains the machinery underneath it: why morale behaves like ammunition, why a fleet inside the Golden Horn changes the arithmetic of a wall. You leave with a causal model, not a date.
Counterfactuals are guesses and we label them as guesses. Where historians disagree, the scenario says so. The 'What really happened' panel is always the documented record, written with historians.
49 BC
One legion, one shallow river, no way back. Do you cross?
1519
A causeway city, an uneasy welcome, and a decision that ends a world.
1961
Wire goes up overnight. You command the tanks at Checkpoint Charlie.
Keep reading: how a snap is structured, the curated collection, The Day the Middle Ages Ended and why MindSnap exists.
The weekly turning point will be free, in the same spirit as the free daily fact.
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